Space
- 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.
- 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.
- 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.
- Planetary Science
Before moon landings, scientists thought dust or crust might disrupt touchdown
Moon dust didn’t swallow spacecraft as was suggested in the 1960s. Successful exploration since that has changed our view of the moon.
- 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.
- 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.
- Planetary Science
The moon is about as old as we thought it was
Meteorite heat signatures pinpoint the age of the collision that created the moon — confirming many previous lunar age estimates.
- 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.
- 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.
- 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.
