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After 10 years of trying, NASA finally bounced its first-ever laser beam off the lunar orbiter - Business Insider India
The National Aeronautics and Space Administration (NASA) was unsuccessfully bouncing laser beams off the Lunar Reconnaissance Orbiter (LRO) for over a decade
The National Aeronautics and Space Administration (NASA) has been bouncing lasers off the Moon since the 70s in its own version of the outer space disco. This time the US space agency was able to hit an even smaller, moving target — the Lunar Reconnaissance Orbiter. Around the size of a car, moving around the move at 70 miles per hour, with a reflector that’s only the size of a paperback novel — NASA and its french partners at the Universite Cote D’Azur saw the signal came back for the first time in 10 years. Why bounce lasers off the Moon?Laser-ranging science has not only been critical in narrowing down the distance between the Moon and the Earth, but it’s also the reason scientists were able to determine that the Moon is moving around 3.8 centimeters or 1.5 inches further away every year. Advertisement There are currently five reflectors on the Moon, and the first two were delivered during the Apollo 11 mission. Each of these reflectors are made up of 100 mirrors. “Now that we’ve been collecting data for 50 years, we can see trends that we wouldn’t have been able to see otherwise,” said Erwan Mazarico, who coordinated the LRO experiment. To continue building on those discoveries, NASA needs to figure out why the older panels are only returning a 10th of the signal that's expected from them. Why are the reflectors on the Moon’s surface so weak?One explanation for the existing reflectors being weak is that dust may have settled over the reflectors over time, considering that they have been on the lunar surface for around 50 years. NASA’s lunar orbiter, on the other hand, was launched in 2009. Comparing the signal from the LRO to the ones sent back from the Moon’s surface can help scientists determine why there may be discrepancies between the two signals. Advertisement However, other factors have a role to play, as well. Each time, the scientists must figure out where each reflector is placed, which is continuously changing with the Moon’s orbit. Once that has been pinpointed, the laser photons first travel through the Earth’s thick atmosphere on their way to the Moon. And then again, on their way back to Earth, which can scatter the light. The light may start as being something that’s only around 10 feet wide, but by the time it reaches the Moon’s surface, it can spread out to nearly 2 kilometers. The light beam only gets wider on the return journey. Advertisement A little bit of luck and a little bit of precisionThe odds of a laser photon reaching the moon’s surface are one-in-25 million. The odds of one of the photons that hit the moon, coming back to Earth is exponentially lower at around one-in-250 million. Reaching the LRO’s reflector expands the odds even further. For one, it’s a moving target, and secondly, it’s one-tenth the size of the reflectors that are already on the moon. Scientists use infrared light to beam at the LRO since it has a better chance of penetrating the Earth’s atmosphere with minimal distortion. Even so, only about 200 protons — out of tens of thousands — made their way to Earth. Advertisement The research team is hoping that this will be enough to help them answer the reflector dust question. SEE ALSO:Jupiter's mushball ammonia rain could explain the mystery behind shallow lightning storms in its atmosphere Richard Branson could be Virgin Galactic’s first passenger in space as early as next year NASA’s Mars-bound spaceship is in 'safe mode' but the agency isn't too worried
Comet Neowise is easily visible in the night sky this week. Here's when and where to look for it. - Business Insider India
Comet Neowise is streaking past Earth with two brightly colored tails of gas and dust. This week is prime viewing time. After the comet rockets back to the
This month offers your only chance to see a 3-mile-wide comet called Neowise as it rockets past Earth. The ball of space ice and its brightly colored tails are expected to reach peak brightness this week. Neowise came from the outermost reaches of our solar system. Its orbit took it dangerously close to the sun on July 3 — 10 million miles closer than Mercury's orbit — but Neowise survived and made its way toward Earth. Now it's visible to the naked eye throughout the northern hemisphere. The comet is expected to get closest to our planet on July 23, approaching within about 64 million miles, according to NASA. But this week, from now through Sunday, may provide the best opportunity to spot it in the sky.Advertisement Then it will rocket away again, toward the edges of the sun's reach. It won't return to the inner solar system for 6,768 years. So far, many comet viewers have had to stay up all night or wake up before dawn to see Neowise rise above the horizon. But according to Space.com, the comet's "prime-time" viewing hours will come in the evenings this week, about 80 minutes after sunset. To catch the ball of space ice and its split tails of white dust and blue ionized gas, look close to the horizon. If you're an early riser, Neowise should also appear before sunrise, about 10 degrees above the northeast horizon — that's about the width of your clenched fist if you hold it at arm's length. It will drop over the next few days, to about 5 degrees by Saturday. After that, it will be too low to see in the mornings. Advertisement After sunset, however, the comet will be higher in the sky and easier to see as the week progresses. By Sunday, it will hang 20 degrees (two fists) above the horizon. Neowise rises in the northwest in the evenings. You won't need a telescope or binoculars — Neowise is visible to the naked eye in dark skies. It's easiest to see if you're far from bright city lights.
New regulation for faster vaccines and treatments for COVID-19 adopted by EU - Business Insider India
Brussels, Members of the European Parliament (MEPs) have adopted a new regulation that will allow vaccines and treatments for COVID-19 to be developed more
Brussels, Members of the European Parliament (MEPs) have adopted a new regulation that will allow vaccines and treatments for COVID-19 to be developed more quickly. The regulation that allows temporary derogation from certain rules for clinical trials was approved on Friday by 505 votes in favour, 67 against and 109 abstentions, following an urgent debate last week, Xinhua news agency reported. Last month, the European Commission proposed a vaccine strategy that requests a temporary and strictly COVID-19-related derogation from certain rules for clinical trials of vaccines or treatments that contain or consist of genetically modified organisms (GMOs). As national requirements to assess the environmental risks of clinical trials on medicinal products that contain or consist of GMOs vary considerably across member states, a derogation from these rules is needed to avoid significant delay in developing life-saving vaccines and treatments. As of Friday, there have been 2,737,749 confirmed COVID-19 cases across the whole of Europe, according to the Statista online data collection portal. SEE ALSO:Fabiflu, Covifor, Cipremi and other drugs approved or under trial for COVID-19 patients in India Cipla says COVID-19 drug Remdesivir will hit market this week Glenmark launches first oral coronavirus drug in India called FabiFlu
Top phones under ₹20,000 in India in July 2020 - Business Insider India
The Indian smartphone segment is highly competitive, especially the under ₹20,000 segment. The increased competition has resulted in smartphone makers offering premium specifications at an affordable price.This segment is currently dominated by the likes of X…
XiaomiXiaomi has been dominating the Indian budget segment over the past few years, thanks to its Redmi line-up. The Redmi Note 9 Pro Max is the latest device in the Redmi Note series. The Redmi Note 9 Pro Max features a glass back with Aura Balance design and features a quad camera setup at the back. It is powered by a Snapdragon 720G chipset. The Xiaomi Redmi Note 9 Pro Max is priced starting at 16,999 and is available in Aurora Blue, Glacier White and Interstellar Black color options from Amazon India, Xiaomi online store and Xiaomi offline stores.
Gmail down for users in India, Google is working on a fix - Business Insider India
Users in India are reporting not being able to log into their Gmail accounts. Downdetector shows that there was a surge in complaints starting at around 4:30
Google server down?Not able to access Google products - docs, drive, gmail, support, ads over Airtel network. — Pawan Singh Negi (@pawan_sn) 1593604976000
Asteroid Day — everything you need to know about the rocks in our solar system that could one day hit Earth - Business Insider India
The sixth annual Asteroid Day will kick off tomorrow, June 30. Some of the most frequently asked questions (FAQs) about asteroids include — what is an asteroid,
Asteroid Day is just around the corner and there are many questions that people have about asteroids. From what exactly is an asteroid to if any of them really do pose a serious threat of hitting Earth one day. Asteroid Day is celebrated on June 30 to mark the anniversary of the Tunguska event in 1908 which flattened 2,000 square kilometres of forest. This year, due to the coronavirus pandemic, Asteroid Day will be celebrated digitally with the events and panel live broadcast on the official site from Luxembourg. Here are some of the most frequently asked questions (FAQs) about asteroids to get you ready for Asteroid Day on June 30.Advertisement
- What is an asteroid?Asteroids are small rocky objects that orbit the sun. They are the remnants from the beginning of the universe that never got a chance to turn into a planet — but scientists believe they hold the secrets to how our solar system was formed. Most of them live in the asteroid belt but can also be found in orbits around planets.
- What is the asteroid belt?The asteroid belt is the region between Mars and Jupiter where most of the asteroids in our solar system are known to orbit the Sun. The asteroid belt contains millions of asteroids. All asteroids come in different shapes and sizes. While some are less than a kilometre, others can be as big as Mount Everest.
- When was the first asteroid discovered?The first asteroid to be discovered was 1 Ceres in 1801 by astronomer Guiseppe Piazzi.
- What is the largest asteroid in the solar system?The largest and biggest asteroid in the solar system, by far, is 1 Ceres with a massive diameter of 974 kilometres. In fact, it’s so big that scientists have labelled it a dwarf planet in 2006. It’s the only object in the asteroid belt that has been rounded by its own gravity. It’s curst is 60% rock and the rest is ice. It takes 1 Ceres 4.6 Earth years to complete one orbit around the Sun.
- What are the other biggest asteroids in the solar system?The next largest asteroids in the solar system are 2 Pallas, 4 Vesta and 10 Hygiea which are between 400 and 525 km in diameter. All three also lie within the asteroid belt. Every other asteroid discovered so far is less than 340 km across. Making 2 Pallas, 4 Vesta and 10 Hygiea the biggest ones by far — second only to 1 Ceres.
- Can an asteroid hit Earth?The chances of an asteroid hitting Earth are slim — but it’s not impossible. That is why space agencies like the National Aeronautics and Space Administration (NASA) and the European Space Agency (ESA) are on a constant lookout for close-approaches. Once they spot an asteroid, it’s put on a watch list and the chance of impact is calculated to ensure that no asteroid slips between the cracks. However, spotting asteroids can be a challenge due to blind spots created by the Sun.
- What asteroid is most likely to hit Earth? ?The asteroid that has the highest likelihood of hitting Earth according to the ESA is 2010RF12. There’s a one in fourteen chance that it could crash into the planet when it makes its close approach on 5 September 2095. The asteroid is only 9 metres in diameter, so it probably won’t wipe out the planet, but the ensuing impact could still be devastating depending on where it lands or explodes.
- What asteroid is most likely to hit Earth in 2020? ?The top 10 asteroids that hold the highest risk of hitting Earth also includes an asteroid that set to make its close approach on 2 November 2020. There’s only one in 193 chance that will actually crash into the planet and it’s also considerably smaller measuring only 2.4 metres in diameter. So, Asteroid 2018VP1 is on the risk list — it is not on ESA’s priority list.
- Why is it important to study asteroids?Scientists believe that asteroids are leftover from what should have been planets when the solar system was born and could hold secrets to the early universe. In addition to the academic insight they could provide, asteroids contain resources.
- What kind of resources do asteroids have?NASA’s studies have determined that there are two types of asteroids that could be of interest to the mining community — achondrites and chondrites. The first group of asteroids are rich in platinum group metals like ruthenium, rhodium, palladium, osmium, iridium and platinum. The second group of asteroids are rich in water — a resource running out on Earth and is even more rare to find in outer space.
NASA video shows 10-year time lapse of Sun in 61 minutes - Business Insider India
Washington, June 28 (IANS) In a stunning hour-long video, NASAs sun-pointing semi-autonomous spacecraft, the Solar Dynamics Observatory, has put together a
Washington, June 28 (IANS) In a stunning hour-long video, NASAs sun-pointing semi-autonomous spacecraft, the Solar Dynamics Observatory, has put together a time lapse of its 10 years of observing the Sun.Over the past 10 years, the spacecraft has gathered 425 million high-resolution images of the Sun, amassing 20 million gigabytes of data, NASA said. This 10-year time lapse showcases photos taken at a wavelength of 17.1 nanometers, which is an extreme ultraviolet wavelength that shows the Sun's outermost atmospheric layer -- the corona. Advertisement Compiling one photo every hour, the movie condenses a decade of the Sun into 61 minutes.The video shows the rise and fall in activity that occurs as part of the Sun's 11-year solar cycle and notable events, like transiting planets and eruptions. The video has been watched by hundreds of thousands of people on YouTube, Twitter and other social media platforms. The data that SDO has gathered over the past 10 years has enabled several new discoveries about the workings of the Sun and how it influences the solar system.With a triad of instruments, SDO captures an image of the Sun every 0.75 seconds. The Atmospheric Imaging Assembly (AIA) instrument alone captures images every 12 seconds at 10 different wavelengths of light. Advertisement While SDO has kept an unblinking eye pointed towards the Sun, there have been a few moments it missed, NASA said.The dark frames in the video are caused by Earth or the Moon eclipsing SDO as they pass between the spacecraft and the Sun. A longer blackout in 2016 was caused by a temporary issue with the AIA instrument that was successfully resolved after a week. Advertisement The images where the Sun is off-center were observed when SDO was calibrating its instruments.SDO was launched on February 11, 2010. --IANS Advertisement gb/na
Indian smartphone companies that Boycott China campaign can bring back - Business Insider India
Indian smartphone companies could make a comeback due to the anti-China sentiment in the country.A majority of India’s smartphone market is dominated by Chinese companies.Micromax has revealed that the company will soon launch a smartphone in the country.Indi…
Indian smartphone companies are nowhere to be found these days, but they could soon make a comeback in the Indian market. The rising anti-China sentiment has created the demand for smartphones, TVs, and other items owned and made by Indian companies.Due to immense competition from Chinese smartphone makers, companies like Micromax, Lava and Karbonn which were immensely popular a few years ago, are virtually non-existent now. However, Micromax has announced that it is re-entering the Indian smartphone industry with new smartphones in the near future. Other companies like Lava and Karbonn could also make a comeback, but there are no details in this regard yet. Here’s a look at some of the Indian smartphone companies that could make a comeback:
A 'ring of fire' solar eclipse will take place on Sunday — here's how to see it - Business Insider India
A rare ring of fire solar eclipse will take place on Sunday. This type of annular solar eclipse occurs when the moon is at the farthest point in its orbit
Some parts of the world will see the sun turn into a "ring of fire" on Sunday. The event, known as an annular solar eclipse, occurs when the moon is at the farthest point from Earth in its orbit and passes between our planet and the sun. The moon partially covers the sun, but its small size in the sky means the sun's outer rim remains visible, making it look like a bright ring. People in parts of China, Central African Republic, Congo, Ethiopia, India, and Pakistan will be able to watch the full annular solar eclipse. The event will begin for those in Central Africa — the first location to see the eclipse — on Sunday, June 21 at 4:47 a.m. local time. It will end for the last areas to see it — parts of China — at 8:32 a.m. local time. (That's at 12:47 a.m. and 4:32 a.m. ET if you watch remotely from the US.)Advertisement A partial annular eclipse will also be visible in southern and eastern Europe and northern Australia. If you are able to catch the solar eclipse in person, make sure to wear proper eye protection, since staring directly at the sun causes eye damage. If, however, the eclipse won't be visible in the sky where you live, you can catch it online. TimeandDate is presenting a livestream on Youtube that can watch below. The name annular eclipse comes from the Latin word "annulus," which means ring. A "ring of fire" eclipse happens once a year. Solar eclipses generally take place about two weeks before or after a lunar eclipse. One lunar eclipse occurred on June 5, and another will happen on July 5. During this annular eclipse, it will take the moon several minutes to pass in front of the sun, but the full eclipse will only last for about one second.Advertisement At the maximum point of the eclipse, the moon will cover about 99.4% of the sun, according to NASA . This week, the agency released a video of an annular eclipse as seen from western Australia in May 2013 to show what viewers can expect.Advertisement Next year's annular solar eclipse will come on June 10, 2021 and be visible in Canada, Northern Europe, Russia, and the Antartic.
The do’s and don’ts of a Solar Eclipse — here what you need to know to protect yourself - Business Insider India
The annular solar eclipse will kick off and be fully visible in India on June 21. Unlike a lunar eclipse, people should exercise caution while viewing a solar
The annular solar eclipse or surya grahan this year will happen on June 21. Across the world, there are many myths and superstitions associated with eclipses — like keeping children and pregnant women away or avoiding travel — and not all of it holds true. However — unlike lunar eclipses — there is a certain level of precaution that everyone must exercise when viewing this event. Do’s during a solar eclipseEven during a normal day, people are advised not to stare directly at the Sun. So when it comes to the solar eclipse, one should use special-purpose solar filters or ‘eclipse glasses’ in order to protect their eyes, according to the National Astronomical Space Administration ( NASA), Advertisement It also advises against using homemade filters or ordinary sunglasses. Even the darkest pair of sunglasses would still transmit far too much sunlight that could damage the eyes. That being said, even while using eclipse glasses, NASA recommends shielding one’s eyes before looking up at the sky during a solar eclipse. Only remove the glasses if you’ve completely looked away or once the solar eclipse is over — not before. While it’s tempting to use a camera to capture the event or use a telescope or binoculars to catch a closer view, scientists advise against it — even if a person is using eclipse glasses at the time. In doing so, one runs the risk of the concentrated solar rays could causing injury. For near or farsighted, they don’t need to take off their glasses in order to view the eclipse. The eclipse glasses can just go over them. In case that feels uncomfortable, they have the option to opt for a hand-held viewer instead. Don’ts during the solar eclipseDriving during a solar eclipse isn’t recommended. According to the American Automobile Association ( AAA), people should drive with their headlights on and safely park their car before observing the event — with adequate protection with the proper gear. But life isn’t perfect, and circumstances may dictate that one may have to be on the road. In such cases, watch out for other distracted drivers. AAA advises drivers should keep some additional space between cars and account for the fact they’ll be driving slower on the day. Advertisement In case you’re going to be watching the solar eclipse with children, make sure to supervise. See also:No, the solar eclipse won’t harm your baby — or your achaar