The asteroid is expected to come within 140,000 miles of Earth — well inside the moon’s orbit.
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Some of them have survived the wilds of space for billions of years.
The largest hazardous asteroid found in the last 8 years showcases a little-known class of planet-killers. And we're woefully unprepared.
The authors call it "wildly theoretical" — but let's take a look, anyway.
The DART mission tested whether it's possible to deflect an asteroid by crashing something into it.
You can't throw a DART at everything in space.
The surface of asteroid Bennu is more like a plastic ball pit than the Moon.
Climate and ecological changes, as well as disruptions to the food chain, were already killing off the dinosaurs.
Sooner or later, Earth is going to be hit by a large enough space object to cause significant damage to humanity. Stopping them isn't easy.
65 million years ago, a massive asteroid struck Earth. Not only did Jupiter not stop it, but it probably caused the impact itself.
60% of all potentially dangerous asteroids remain undetected.
Asteroid collisions aren't always bad.
Spaceguard shows that we can manage risks to the extinction of humanity — if only we put our mind to it.
This technological feat changes our cosmic history.
Whether you call it 10 quintillion, 10 million trillion, or 10 billion billion, it's a 1 followed by 19 zeroes.
Most potentially hazardous asteroids remain unidentified. NEO surveyor could change that, but only if it's funded, and soon.
Many impact craters on Earth have been erased thanks to wind, water, and plate tectonics. But scientists have clever ways to find them.
2023 will see the launch of new rockets, the return of OSIRIS-REx, and a mission to Jupiter that could help us find extraterrestrial life.
In 2022, the probe will crash into an asteroid while a nearby satellite captures it on camera.
In 2020, scientists took more than a kilo of moon rock and soil back to Earth for testing.
Compared to Earth, Mars is small, cold, dry, and lifeless. But 3.4 billion years ago, a killer asteroid caused a Martian megatsunami.
The James Webb Space Telescope (JWST) will study many dangerous cosmic phenomena, knowledge of which may help save humanity.
You can lead an overconfident chatbot to expert knowledge, but can it actually learn and assimilate new information?
Each year in mid-August, Earth plows through the debris stream of an enormous comet, creating the Perseids. 2023's show will be magnificent!
Can two planets stably share the same orbit? Conventional wisdom says no, but a look at Saturn's moons might tell a different story.
The recently discovered Oort cloud comet, Bernardinelli–Bernstein, has the largest known nucleus: 119 km. Here's what it could do to Earth.