The discovery provides new insights into the question, 'how large can a planet be?' An illustration of the HR 8799 system with three of its gas ...

Amino acids, the building blocks necessary for life, were previously found in samples of 4.6-billion-year-old rocks from an ...

Gas giants are large planets mostly composed of helium and/or hydrogen. Although these planets have dense cores, they don't ...

A new study offers a look at how the building blocks of life might ...

Tiny grains of dust from asteroid Bennu are reshaping how scientists think life’s ingredients formed in space.

With this new survey, astronomers have gained a peek inside a stage of exoplanet system formation they have yet to fully ...

NASA observes interstellar comet 3I/ATLAS unexpectedly flaring as it leaves the solar system, revealing water vapour and ...

Hubble observations reveal a giant, turbulent planet-forming disk that may reshape theories of how planetary systems develop.

Asteroids are not just random rocks — some are massive, fast, strangely shaped, or on trajectories that make scientists pay ...

NASA's shock discovery as interstellar comet 3I/ATLAS blasts out pristine ices at 153,000mph, reigniting alien theories and ...

The Juno observations showed that Jupiter has an equatorial diameter of 88,841 miles (142,976 km), which is about 5 miles (8 ...

NASA’s SPHEREx telescope spotted interstellar visitor comet 3I/ATLAS flaring up while exiting the solar system. Scientists explain what caused it.