Hera is headed to the asteroid Dimorphos. NASA crashed its DART spacecraft into the space rock in 2022 in an area about 11 million kilometers from Earth. The NASA mission was an experiment to test a method for changing the orbit of asteroids that might one day threaten Earth. 赫拉正前往...
A spacecraft has blasted off to investigate the scene of a cosmic crash. The European Space Agency's Hera spacecraft rocketed away from Florida on Monday on a two-year journey to the small, harmless asteroid rammed by NASA in 2022.
Mission controllers for NASA's repurposed Osiris-Apex mission are waiting to see if a course alternation that took it 25 million mi. closer to the Sun than... M Carreau - 《Aerospace Daily & Defense Report》 被引量: 0发表: 2024年 Mesosiderite formation on asteroid 4 Vesta by a hit-and...
NEW YORK (AP) — NASA's plan to scoop up dirt and gravel from an asteroid has hit a snag, but scientists say they can overcome it.
NASA scientists must examine the data to determine how much Dimorphos’ momentum was changed by the hit. Additionally, a global team is using dozens of telescopes stationed around the world and in space to observe the asteroid system. Specifically, they will examine the ejecta produced and measur...
The narrow impact risk corridor for asteroid 2024 YR4. (Daniel Bamberger/Wikimedia Commons (CC BY-SA 4.0)) It should be noted that a 1.3 per cent chance of impact is also a 98.7 per cent chance of a miss. Thus, it is far more likely that 20...
in the future, Earth is going to end up in the crosshairs of an asteroid that's big enough to be a threat. Whether it's a 'planet-killer' or a 'city-killer', we need to know about these asteroids, and we need to have a plan in place to deal...
A test to protect Earth from asteroids unleashed a swarm of boulders—and a new study suggests that there may be some unintended consequences.
The Asteroid Terrestrial-impact Last Alert System, or ATLAS, telescope located in Rio Hurtado, Chile, first spied the space rock on December 27. The telescope is one of the asteroid discovery programs funded by NASA to scan the sky in search of near-Earth asteroids, said Davide Farnocchia,...
根据文章第二段If we don't want to go the way of the dinosaurs someday,we need to protect ourselves against the threat of being hit by a bi asteroid.According to NASA,typically about once every 10,000 years,a rock y or iron asteroid the size of a football field co...