Astronomers have found a cluster of giant asteroids co-orbiting the Sun with Venus—space rocks that might become a long-term hazard for Earth. These are not ordinary asteroids. Sometimes referred to as city killers because of their size, many are bigger than 140 meters; they are big enough to wipe out a whole urban centre upon…
An asteroid-chasing spacecraft just swung past Mars on Wednesday. As it zipped by, it took hundreds of shots of the Red Planet, as well as several snaps of Deimos, one of the two small Martian moons. The operators of the European Space Agency’s Hera spacecraft were bewitched by the sci-fi aesthetics of the pictures. “We…
Astronomers have been carefully watching 2024 YR4, a space rock with a heightened chance of hitting Earth in 2032. But fear not: NASA announced on Monday that it posed a threat no longer — the odds that the asteroid would smash into our planet have dropped to nearly zero. “I knew this was likely to…
A private company is aiming to heave a microwave oven-size spacecraft toward an asteroid later this week, its goal to kick off a future where precious metals are mined around the solar system to create vast fortunes on Earth. “If this works out, this will probably be the biggest business ever conceived of,” said Matt…
Astronomers on Tuesday said that the asteroid designated 2024 YR4 had become the most likely sizable space rock ever forecast to impact planet Earth. The object, first detected in December, is 130 to 300 feet long and expected to make a very close pass of the planet in 2032. Its odds of impacting Earth on…
Since December, astronomers have been carefully studying whether an asteroid between 130 and 300 feet long will impact the Earth in just under eight years. And the odds, overall, seem to be rising. On Jan. 29, the chances of this asteroid (named 2024 YR4) striking our planet on Dec. 22, 2032, were 1.3 percent. Then…
You may hear about a large asteroid headed toward Earth. Don’t panic. Just after Christmas Day, astronomers spotted something zipping away from Earth: a rock somewhere between 130 feet and 330 feet long that they named 2024 YR4. Over the next few weeks, they simulated its possible future orbits. They now say, based on the…
Our solar system contains planets, dwarf planets, asteroids and comets — but only one world is known to harbor life. Scientists have long debated whether Earth is truly unique. Perhaps our planet just happened to have the right combination of ingredients, conditions and timing to allow life to emerge. But a pinch of grit from…
For a few months last fall, a school-bus-size space rock named 2024 PT5 gained fame as Earth’s new “mini-moon.” Astronomers rushed to study the object while it was still close enough to Earth to observe in detail. Now, one team has concluded that 2024 PT5 is a chunk of the real moon. The rock was…
Two asteroids are soon to pass near Earth, causing a spectacle in the sky as the new year begins. The space agency claims that there is no immediate danger to Earth, though the passes will be an indication of the growing need to watch the celestial world. These past events also teach scientists about how…