Astronomy
- Astronomy
White dwarf pair will trigger a supernova — in 700 million years
Astronomers found two white dwarfs with enough mass to explode as a supernova.
- Astronomy
First stars born later than thought
New results from the Planck mission indicate that the first stars began to shine 550 million years after the Big Bang.
- Astronomy
Asteroids or planets might trigger a supernova
Rocky debris falling onto a white dwarf might trigger some supernovas.
- Physics
When entering a black hole, fasten your seat belt
Rapidly spinning black holes can generate turbulence, a new analysis shows.
- Astronomy
Giant rings encircle young exoplanet
Stretching 90 million kilometers from their center, 37 stripes of dust around exoplanet were probably crafted by moons.
- Cosmology
Dust erases evidence for gravity wave detection
The claimed detection of primordial gravitational waves does not hold up after taking into account galactic dust, a new analysis concludes.
- Astronomy
Neptune-like worlds could become habitable
Mini-Neptunes can drift toward their stars and lose their atmospheres, leaving behind ice-rich rocky cores that can become watery worlds.
- Astronomy
Oldest solar system unearthed by Kepler
Five rocky planets orbit the 11.2-billion-year-old star Kepler 444, suggesting that Earth-sized worlds formed in the early universe.
- Planetary Science
Large asteroid buzzes Earth
Asteroid 2004 BL86 swings by Earth today at three times the distance to the moon, the closest asteroid encounter until 2027.
- Astronomy
Rocky planets around cool stars may have Earthlike climates
Small, rocky planets that sit close to cool stars might be able to keep spinning, creating conditions hospitable to life.
- Astronomy
Large rocky planets excel at ocean building
Rocky planets a few times as massive as Earth may build deeper oceans – and sustain them for longer – than smaller worlds.
- Astronomy
Hubble telescope captures panorama of Andromeda galaxy
The Hubble Space Telescope captured a panoramic mosaic of the closest spiral galaxy to the Milky Way, mapping the light from over 100 million stars.
