A massive comet trail may have caused climate upheaval on Earth more than 12,000 years ago, sparking the Younger Dryas.

This new measurement suggests some comets — particularly those such as 12P/Pons-Brooks — could indeed have delivered water, and possibly other life-essential elements, to a young Earth.

Mankind must decide how it’s going to deal with contact with extraterrestrials — and time could be running out, one expert warned — after he sounded the alarm that an incoming ...

Metallic beads in Arctic mud point to a comet impact that may have triggered the Ice Age 12,800 years ago, challenging ...

These strange objects could explain how water arrived on Earth, but may also be a previously unrecognised threat to our ...

Hubble also captured a dust plume ejected from the Sun-warmed side of the comet and a hint of a dust tail streaming away from ...

Discovered last month by a telescope in Chile, the comet known as 3I-Atlas is only the third known interstellar object to pass our way.

Scientists estimate the object to be more than 12-miles-wide, speeding at 37 miles-per-second, relative to the sun.

"We should put all possibilities on the table that it's a rock, a comet, or something else until we get the evidence, the ...

Scientists have uncovered microscopic clues buried deep in the ocean floor that could support a bold theory — a comet ...

NASA's Hubble Space Telescope got an up-close look at a headline-grabbing object known as 3I/ATLAS that has wandered into ...

Of course, 3I/ATLAS is no ordinary comet. Discovered on July 1, 2025 by the Asteroid Terrestrial-impact Last Alert System ...