From lava worlds to gas giants, NASA says the variety of these worlds is staggering—and that signs of a further 8,000 distant ...

Astronomers are investigating a strange class of exoplanets known as eccentric warm Jupiters — massive gas giants that orbit ...

A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and ...

Microbes high in Earth’s stratosphere produce pigments to protect them from UV light – so similar molecules could be ...

(The European Space Agency) A mysterious interstellar comet — just the third such object ever confirmed to have entered our solar system — streaked past Mars last week. A spacecraft in orbit around ...

One of the most notable properties of the giant planets in our solar system—Jupiter, Saturn, Uranus and Neptune—are the ...

The rate of finding these distant worlds has recently increased, with astronomers scrambling to accommodate the data ...

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Astronomers have discovered a significant “growth spurt” in a rogue planet outside of our solar system. The free-floating planet is currently consuming gas and dust from its surroundings at a rate of ...

Planet 9 may exist 42 billion miles away, influencing objects in the Kuiper Belt, and could be discovered with modern ...

Exoplanet hunters Christopher Watson and Annelies Mortier explain the long search for a 'twin Earth' capable of sustaining ...

The European Space Agency also hoped to observe the interstellar object during its close approach to Mars using two ...