Exoplanet HIP 67522 b, fluffed up to the size of Jupiter, circles so close to its star that it’s triggering violent flares — ...

A new investigation into old Kepler data has revealed that a planetary system once thought to house zero planets actually has ...

Caption The Relative Size of the Planets Educational Notes The size of an object is the magnitude it holds as well as its dimensions. It describes how big something is. Size can be measured by area, ...

The Solar System may appear calm and well organized, but it is actually the result of billions of years of delicate cosmic ...

Astronomers using the European Space Agency's Cheops mission have caught an exoplanet that seems to be triggering flares of ...

University of Arizona astrophysicist Erika Hamden takes readers on a romp through a "Weird Universe" in her debut popular ...

"We show how planets in binary systems can undergo a mirrored migration process, so that both stars end up with hot Jupiters.

Astronomers have used the ALMA radio telescope to investigate how planets grow in protoplanetary disks of gas and dust around young stars.

How many dwarf planets are there in our solar system? The recent discovery of 2017 OF201 makes the tally anywhere between ...

The discovery of the exoplanet, a super-Earth called Kepler-735c, is all down to something called transit timing variations, ...

The planets in order from the Sun are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. If you include the ...

Chaotic instabilities occur in hot Jupiter atmospheres as alkali metals heat up as a result of extreme temperature dynamics.