"The fact that terrestrial microbes are the Earth's best colonizers means we can never completely discount terrestrial ...

WB—is estimated to be between 240 and 525 feet across and will pass us at about twice the distance between the Earth and moon ...

Scientists have found microorganisms crawling over a sample retrieved from the 200 million-mile-distant asteroid Ryugu. But ...

Earth is parting company with an asteroid that's been tagging along as a “mini moon" for the past two months. The harmless ...

Brian Hackney reports on the possible origins of Earth's recent "mini-moon" that is preparing to depart our orbit.

Earth is saying goodbye to an asteroid that has been a "mini-moon" of sorts since late September, when it joined the planet's ...

Preliminary research suggests asteroid 2024 PT5, which stuck around Earth for almost two months, has lunar origins ...

Astronomers used the Two-meter Twin Telescope to catch a "see-you-soon" image of the departing asteroid 2024 PT5.

In How to Kill an Asteroid, Robin George Andrews looks at the successes and shortcomings of planetary defense.

Lowell Observatory astronomer and asteroid expert Nick Moskovitz said we know little about this asteroid coming by so close ...

Asteroid Ryugu was altered by water and contains organic molecules older than the Sun. The building blocks of RNA and Vitamin ...