Triple star system involving a pulsar suggests Einstein was right. Kevin Gill/Flickr, CC BY-ND

Free-falling dead stars show that a cornerstone of physics holds up

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What could a ‘relativistic camera’ capture on the way to Alpha Centauri? ESA/NASA, CC BY

Observing the universe with a camera traveling near the speed of light

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This photograph was taken in Wallonia, Belgium. J.S. Henrardi

Are we alone? The question is worthy of serious scientific study

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An artist’s impression of interstellar object `Oumuamua, assuming it’s a rock. ESO/M. Kornmesser, CC BY

Comet or asteroid? Mysterious ‘Oumuamua shows why we may need a new classification system

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Artist depiction of an asteroid on a collision course with Earth. By Mopic/shutterstock.com

New telescope will scan the skies for asteroids on collision course with Earth

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Blast off. Sergey Nivens

Eight ethical questions about exploring outer space that need answers

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This photo of Jupiter, taken by NASA’s Hubble Space Telescope, was snapped when the planet was comparatively close to Earth, at a distance of 415 million miles. Credits: NASA, ESA, and A. Simon (NASA Goddard)

NASA’s James Webb Space Telescope to Target Jupiter’s Great Red Spot

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As the West Antarctic Ice Sheet melts, the land beneath rebounds – at a faster rate than thought. NASA, CC BY-NC-ND

The West Antarctic Ice Sheet is in trouble – but the ground beneath it may buy some time

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