Here’s what you should know when you go outside to see for yourself: Yes, the planets are indeed lined up across our sky. No, ...

A new study claims it is possible an "alien visitor" could have warped our solar system during its earliest years.

A new study suggests that a close encounter with a massive interstellar object, possibly eight times the mass of Jupiter, may ...

A U.S. scientist searching for a civilization across 7 Earth clones circling the red dwarf star TRAPPIST-1 says its own alien ...

Located less than 20 light years away, HD 20794d could potentially be one of the most Earth-like planets found so far, ...

When you first learned about the Solar System, you probably saw diagrams that made it look orderly, with planets arranged in ...

The risk of impact is likely to drop to zero as observations of Asteroid 2024 YR4 continue.

Tonight and throughout January, stargazers can see a planetary alignment in the night sky or what some are calling a ...

Researchers say there’s a 1.3 percent chance that the space rock 2024 YR4 could strike our planet — but not until December ...

The recent hype about the planetary alignment of Mercury, Venus, Mars, Jupiter, Saturn, and the Moon is not as rare as ...

Scientists found an intriguing world in our galaxy.

A new study suggests that a close encounter with a massive interstellar object, possibly eight times the mass of Jupiter, may have significantly altered the orbits of the four outer planets in our ...