'Alien comet' visitor has weird composition

The first known comet to visit us from another star system has an unusual make-up.

By Paul Rincon • bbcnews
April 20, 2020 ~6 min

Tags: space astronomy exoplanets nasa space-exploration comets

Giant planet around tiny star 'should not exist'

The Jupiter-like world is unusually large compared with its host star, challenging existing theories.

By Paul Rincon • bbcnews
Sept. 27, 2019 ~6 min

Tags: astronomy exoplanets space-exploration

Water found for first time on potentially habitable planet

Astronomers discover water in the atmosphere of a "habitable" planet orbiting a distant star.

By Pallab Ghosh • bbcnews
Sept. 11, 2019 ~5 min

Tags: astronomy exoplanets planets

Exoplanet tally set to pass 4,000 mark

The number of planets detected around other stars - or exoplanets - is set to hit the 4,000 mark.

By Paul Rincon • bbcnews
March 23, 2019 ~4 min

Tags: astronomy exoplanets nasa space-exploration european-space-agency tess-telescope

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