Stargazers will be treated to a rare seven-planet alignment in February. This is what scientists hope to learn.

With an assist from the NEID spectrograph, a team of astronomers have confirmed the existence of exoplanet Gaia-4b—one of the ...

Gaia-4b is a planet orbiting the star called Gaia-4, around 244 light-years away. Gaia-4b is about twelve times more massive ...

As the largest planet in the solar system ... Just in case you're referring to this kind of period instead to the orbital period, the rotational period can also change due to cometary outgassing and ...

New insights into the extreme conditions behind "disintegrating planets" reveals how they are consumed by the heat of their ...

Using data from the European Space Agency's Gaia mission, scientists have found a huge exoplanet and a brown dwarf. This is the first time a planet has been uniquely discovered by Gaia's ability to ...

Using in part the NEID spectrograph mounted on the WIYN 3.5-meter Telescope at the U.S. National Science Foundation Kitt Peak ...

A team of astronomers have discovered a rather curious exoplanetary system that has two gas giant planets that are messing up each other’s orbit! On of them is 3.8 times the mass of Jupiter and ...

Mercury may also be visible with the other planets for a period of a few days starting ... shift across the sky — partially because of our orbital motion around the sun and partially because ...

Recent studies have revealed that, until now, Hot Jupiters seem to be the only planet in orbit around their host star. This ...