Interstellar objects are visitors from solar systems beyond our own, and the third ever such object, known as 3I/ATLAS, has ...

According to the team's measurements, the comet's nucleus is around a whopping 128 kilometers (80 miles) across, making it bigger than the state of Rhode Island, and far larger than its closest ...

Alphabet is regaining AI leadership with Gemini 2.5 Pro, Waymo’s growth, and attractive valuation. Click here to find out why ...

The third object known to have entered the Solar System from interstellar space has an origin unlike either of its ...

While thinking of space as one big rubbish tip isn’t nice, one perk of all this cosmic filth is meteor showers, which light ...

How do we know 3I/ATLAS, also called comet C/2025 N1 (ATLAS), is interstellar? Will it strike Earth? Can we visit it? Here ...

Once in space, the Comet Interceptor will travel to the Sun-Earth Lagrange point L2 (just like Ariel), meaning 932,000 miles ...

Meteoroid streams from long-period comets don’t stay perfect ribbons forever. They gradually lose their shape, due in part to the Sun’s changing position during each encounter.

The meteoroid stream of long-period comet Thatcher (white line). Each meteoroid moved on its own orbit and created a Lyrid shower meteor when it hit Earth after approaching the orbit of Earth (blue ...

As a long-period comet, Comet ATLAS takes a long time to complete an orbit of the Sun. Astronomers estimate its orbital period is about 160,000 years.

Potentially dangerous comets could be spotted many years in advance by following the meteoroid trails they leave near Earth, new research shows.