Each of the planets, labeled b, c, d, and e, has a mass between 20% and 30% of Earth's, making them among the smallest yet detected using the radial velocity method.

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

Decades of constant X-ray emission from the Helix Nebula’s white dwarf suggest debris from a Jupiter-sized planet steadily rains upon the star.

An asteroid discovered over 200 years ago which is roughly the size of Germany would have catastrophic consequences for life ...

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 ...

So in some sense, alien worlds were not first discovered in the 1990s or even the 1980s. It took nearly a century to fully ...

Only a few years ago, astronomers heralded the discovery of a rocky world circling the sun 's closest space neighbor, Proxima ...

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.

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

As solar, wind, and hydropower expand, scientists say integrating climate data and forecasting is key to making renewable ...

This week's Xplore talks about giant planets in out solar system, a revolutionary water purifier, how birds are changing ...

Experts have unveiled details of SIMP 0136, a floating planetary mass thought to be around 20 light-years away from the Earth ...