![]() Within three days, a number of observatories around the world had made dozens of observations, helping astronomers better refine 2023 BU’s orbit. Yes, NASA says an asteroid today will get extremely close to Earth. After sufficient observations were collected, the MPC announced the discovery. (Pixabay) A day after an aiplane-sized asteroid hurtled very close to our planet, there is a new terror on way. Additional observations were reported to the Minor Planet Center ( MPC) – the internationally recognized clearinghouse for the position measurements of small celestial bodies – and the data was then automatically posted to the Near-Earth Object Confirmation Page. The asteroid was discovered by amateur astronomer Gennadiy Borisov, discoverer of the interstellar comet 2I/Borisov, from his MARGO observatory in Nauchnyi, Crimea, on Saturday, Jan. But even if it did, this small asteroid – estimated to be 11.5 to 28 feet (3.5 to 8.5 meters) across – would turn into a fireball and largely disintegrate harmlessly in the atmosphere, with some of the bigger debris potentially falling as small meteorites. There is no risk of the asteroid impacting Earth. EST) only 2,200 miles (3,600 kilometers) above the planet’s surface and well within the orbit of geosynchronous satellites. Designated 2023 BU, the asteroid will zoom over the southern tip of South America at about 4:27 p.m. 26, a small near-Earth asteroid will have a very close encounter with our planet. I highly recommend you do.īuy Under Alien Skies from . Science News is a affiliate and will earn a commission on purchases made from links in this article.On Thursday, Jan. Exactly what, I won’t reveal I’ll let you read the book and find out. If you could zoom in all the way to the center of the black hole, you’d see even weirder stuff. “It’s mesmerizing, if a bit disconcerting,” Plait writes. You have a front-row seat to see the star’s light being bent by the black hole’s gravity. If you squint, you can make out the rim around the black hole, where stars jostle, and then one slides along the curve of the horizon until its light flickers into that nothingness. After the long journey and the suspense of experiencing such a beast, you’d feel cheated if you saw seemingly empty space. But from a safe distance, a starship can get a good peek with some telescopes - good enough that it feels like you’re hovering just above the event horizon, the black hole’s point of no return ( SN: 5/31/14, p. Going inside a black hole is out of the question you’d be toast. The book ends with an aptly named final chapter, “The last sky you’ll ever see,” which contemplates the view from close to a black hole. The loose rock and ice would appear as wispy as piles of pixie dust. ![]() The lander shattered the rocks it hit on impact, even though it was moving slower than a typical walking speed. “It’s so good to see you.” Finding Philae and exploring the aftermath of its crash would show just how fragile the comet is, Plait explains. It’s Philae, the lander that bounced and crashed on the comet in 2014 ( SN: 8/22/15, p. The pole is attached to a box, turned off-kilter. Jetting to the smaller lobe, Plait points out a metal pole jutting from the rocks. “ ‘Smaller’ seems like the wrong word it looks like an entire planet hanging over your head,” Plait writes. Looking up toward the sky means seeing the rocks of the smaller lobe. ![]() One of my favorite stops on Plait’s tour is the comet 67P/Churyumov–Gerasimenko, a two-lobed object shaped like a big rubber ducky. But it would blaze as a “painfully bright” dot, Plait writes, about 160 times as bright as the moon looks to us, and it would have a faint, deep-blue halo because Pluto’s thin air scatters short, blue wavelengths of light. Standing on Pluto, the sun would appear one-fiftieth its size from Earth’s viewpoint. It’s so far away from the sun that, even at midday, the sky is utterly black and the stars are visible.Ĭontrary to what some articles on the internet say, the sun would not look like any other star in the sky. It’s typically the color of rust, because the Red Planet’s atmosphere is chock-full of dust that tends to scatter red light the most. Thanks to rovers, we’ve seen actual images of Mars’ sky ( SN: 8/13/22, p. ![]() In some cases, it’s not too hard to imagine the views. A spacecraft will complete a 10-month flight. He even includes explanations of the space suits you’d need to stand and gaze at the skies on the moon, Mars, Pluto and other orbs. Septem/ 9:37 AM / CBS News NASA shifts into Earth defense mode tonight, with a mission that is part science and part science fiction. Plait is the perfect captain on this expedition, vividly bringing these alien worlds to life while deftly weaving in the science to support the scenery. ![]()
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