World News Story Did Australia Asteroid End Snowball Earth

A giant asteroid hit Earth, but its crater is missing

Researchers discovered a new field of ancient tektites in South Australia, revealing a long-forgotten asteroid impact. These 11-million-year-old glass fragments differ chemically and geographically ... Read More

Unknown asteroid flew past Earth closer than a satellite—and we didn't spot it until hours later

Astronomers were slow at spotting a small giraffe-sized asteroid that zoomed past our planet on Tuesday, September 30, 2025, at 8:47 p.m. EDT. The encounter was not discovered until hours later as the ... Read More

Asteroid just flew closer to Earth than many satellites, space agencies say

Another asteroid zoomed near Earth's vicinity the next day. An asteroid just flew closer to Earth than many satellites, according to space agencies. The space object, named 2025 TF, zoomed over ... Read More

An asteroid just made 'one of the closest approaches ever' to Earth

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 ... Read More

Hidden in the sun's glare, this asteroid is uncomfortably close to earth

In the distant past, the solar system was rife with impacts and collisions. Millions of rocky objects zoomed chaotically through the system, smashing into each other in collisional cascades. Over time ... Read More

An asteroid just flew really close to Earth. No one noticed until hours later.

Earth has a near miss—twice—after two small asteroids seemingly passed alarmingly close to the planet, less than two days apart, one of them going completely unnoticed until hours after it had already ... Read More

Does Earth have 2 moons? Not quite. What to know about asteroid 2025 PN7

The recently spotted asteroid 2025 PN7 appears to be the source of the rumor mill about Earth's supposed second moon. Earth has several quasi-moons that get their name due to the fact that they ... Read More

Newly discovered asteroid soars past Earth in one of the ‘closest approaches ever recorded’

An asteroid was spotted whizzing past Earth last week in the second closest approach to the planet ever recorded, according to authorities. Asteroid 2025 TF soared over Antarctica just before 9 p.m. Read More