A July flyby of a massive asteroid went undetected until two days after it passed, raising urgent questions about planetary ...

While most of them are small and disappear in the atmosphere, some of them come alarmingly close to our planet. While ...

A small asteroid just gave the Earth a close buzz. The little space rock, called 2025 TF, safely passed within roughly 250 miles (400 km) of our planet on Tuesday (Sept. 30) at 8:49 p.m. EDT ...

A small asteroid, known as 2025 TF, flew over Antarctica on October 1, 2025, at an altitude of only 266 miles.

Time now for an interstellar flyby. Let's meet a very old comet, 3I/ATLAS. DARRYL SELIGMAN: 3I/ATLAS is probably somewhere between 3 billion to 11 billion years old. So it's presumably been traveling ...

Perihelion for 3I/ATLAS takes place on Oct. 30, when the interstellar interloper will be 1.35 astronomical units (125 million ...

The newly discovered "twilight" asteroid, 2025 SC79, was obscured by the sun's glare until an astronomer pointed the Dark ...

View post: REI's Wind and Water-Resistant Hiking Jacket Is Nearly $70 Off Right Now Astronomers say a recently-discovered asteroid nearly landed on Earth, and that it could have caused serious damage ...

There are many programs that detect near-Earth asteroids as part of countries' planetary defense strategies. In the case of ...

On October 31, 2015, an asteroid shaped like a human skull flew by Earth. It arrived with excellent timing on Halloween, ...

On Sept. 26, 2022, NASA's Double Asteroid Redirection Test craft smashed into its target, the hazardous asteroid Dimorphos, ...

A newly discovered asteroid just whizzed past Earth, marking the second-closest asteroid flyby on record, astronomers say. The asteroid flew over Antarctica just before 9 p.m. ET on Sept. 30, about ...