Astronomy
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Astronomy
Tiny explosions add up to heat corona
Millions of mini-explosions every second on the sun could solve the riddle of why the sun’s atmosphere is so much warmer than its surface.
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Planetary Science
The Martian Diaries
Curiosity has explored Mars for over two and a half years. What if NASA's rover kept a scrapbook?
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Astronomy
Lit-up gas clouds hint at galaxies’ violent pasts
Voorwerpjes, tendrils of gas that orbit galaxies, continue to glow tens of thousands of years after being blasted with ultraviolet radiation.
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Astronomy
Astronomers celebrating Hubble’s past focus on its future
Astronomers celebrate the 25th anniversary of the Hubble Space Telescope by reflecting on its diversity and looking ahead to the future.
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Astronomy
Cosmic threesomes make some galaxies run away
Extremely rare, free-floating galaxies called compact ellipticals may have been ejected from their home clusters after a massive intergalactic meet-up.
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Astronomy
Cosmic rays misbehave in space station experiment
A puzzling feature in a new cosmic ray census may force physicists to rethink which cosmic objects send these speedy particles hurtling across the galaxy.
By Andrew Grant -
Astronomy
Color differences could recalibrate cosmic acceleration rate
Color differences in a class of supernovas could lower estimates of how much dark energy is in the universe.
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Astronomy
A look back in time reveals Milky Way’s evolution
A sample of galaxies covering 11 billion years of cosmic history helps astronomers document how the Milky Way evolved.
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Astronomy
X-rays offer early warning for solar flares
X-rays shot out by the sun foretell the intensity of an upcoming solar flare, new research suggests.
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Astronomy
Ringing rings reveal Saturn’s innards
Scientists propose that exotic structures are buried within Saturn, based on analyses of subtle vibrations in the planet’s rings.
By Andrew Grant -
Astronomy
Galactic split provides clue to dark matter mystery
An oddly divided galaxy may provide the first evidence that dark matter particles interact through a force other than gravity.
By Andrew Grant -
Astronomy
Map pinpoints location of invisible dark matter
A new map shows that dark matter is concentrated in regions that contain a lot of ordinary matter in the form of galaxy clusters.
By Andrew Grant