Space
We summarize the week's scientific breakthroughs every Thursday.
- Earth
Asteroids boiled young Earth’s oceans, remnant rocks suggest
Giant asteroid impacts may have boiled Earth’s oceans around 3.3 billion years ago, snuffing out near-surface life.
- Astronomy
First quasar quartet discovered
A quartet of quasars seen in the early universe may mark where a massive galaxy cluster is starting to form.
- Planetary Science
New Horizons probe takes family photo of Pluto’s moons
The New Horizons spacecraft finally spied Pluto's two tiniest satellites, Kerberos and Styx, in a series of images taken from April 25, 2015 to May 1, 2015.
- Astronomy
Andromeda reaches out to touch Milky Way
The Andromeda galaxy is enveloped in a wispy halo of gas that extends halfway to the Milky Way.
- Astronomy
Japanese satellite stalls in space and won’t reach its asteroids
Because of an engine failure, the Japanese Space Agency’s PROCYON spacecraft won’t make it to its target binary asteroid.
- Planetary Science
Bright spots on Ceres may be made of smaller patches of ice
The Dawn spacecraft took a closer look at bright patches and craters on the dwarf planet Ceres.
- Astronomy
Erupting volcanoes may cause exoplanet’s temperature extremes
Temperatures fluctuate wildly on a nearby exoplanet, and volcanoes might be the culprit.
- Planetary Science
Origin date established for Mercury’s magnetic field
A 3.8-billion-year-old magnetic field on Mercury provides clues as to how the once volcanically active planet evolved.
- Astronomy
Amorphous space blob takes title for most distant galaxy
The new record holder for the most distant galaxy is a blob of 8 billion stars whose light took more than 13 billion years to reach Earth.
- Astronomy
‘Black Hole’ traces 100 years of a transformative idea
Implied by general relativity and proven by astronomical discoveries, black holes’ existence took decades for physicists to accept.
- Astronomy
Wandering planets, the smell of rain and more reader feedback
Readers consider how hard it would be to fashion Paleolithic tools, discuss what to call free-floating worlds and more.
- Planetary Science
How did Earth get its water?
Earth is a wet planet that formed in a dry part of the solar system. How our planet’s water arrived may be a story of big, bullying planets and ice-filled asteroids.
