All Stories by Robin George Andrews
- Planetary Science
Uranus has weird rings. Astronomers now know the source of two of them
The Nu ring seems to be fed by unknown rocky bodies, whereas the Mu ring appears rich in water ice and linked to the moon Mab.
- Astronomy
A nebula’s X-ray glow may come from a destroyed giant planet
Decades of constant X-ray emission from the Helix Nebula’s white dwarf suggest debris from a Jupiter-sized planet steadily rains upon the star.
- Planetary Science
The cataclysmic origins of most of Earth’s meteorites have been found
Just a few smashups in the asteroid belt may account for 70 percent of Earth’s meteorites, limiting what’s known about our solar system’s history.
