We've known for over 30 years that there are other stellar systems in our galaxy, but we don't have any idea how many there ...

Scientists are using an array of instruments to detect other planets, some of which may harbor life—and others that most ...

The two exoplanets, or planets outside of our solar system, orbit a star called TOI-1453, which is slightly cooler and ...

The findings provide strong evidence that four giant exoplanets 130 light-years from Earth formed much like Jupiter and ...

These planetary hangouts happen when several planets appear to line up in the night sky at once. They're not in a straight ...

Mar. 17, 2025 — The James Webb Space Telescope has captured its first direct images of carbon dioxide in a planet outside the solar system in HR 8799, a multiplanet system 130 light-years away ...

Like the planets in our solar system orbit the sun ... is chaotic and can make the system unstable, ejecting other planets out of the planetary system. The second possibility is called cold ...

Meteorites are rocks from space that survive their fiery descent through Earth's atmosphere and reach the ground. More than ...

The answer, it turns out, depends on your definition of ... The number of planetary moons may also increase if we find more planets in the solar system. One such world is the elusive Planet ...

What drives us to send probes throughout the Solar System and rovers and landers to Mars? It's not cheap, and it's not easy.

Mar. 17, 2025 — The James Webb Space Telescope has captured its first direct images of carbon dioxide in a planet outside the solar system in HR 8799, a multiplanet system 130 light-years away ...

“[Planetary scientists] have thought our solar system is not standard in its spacings,” says astronomer Juliette Becker of the University of Wisconsin-Madison. In particular, the rocky planets ...