Space
- Planetary Science
Shallow ice sheets discovered on Mars could aid future astronauts
Exposed water ice on steep Martian slopes suggest there’s a lot within a meter or two of the surface.
- Planetary Science
Hubble telescope ramps up search for Europa’s watery plumes
Astronomers are redoubling their efforts to confirm that the icy moon Europa spews water from its south pole.
- Astronomy
Fast radio bursts may be from a neutron star orbiting a black hole
A repeating fast radio burst has twisted waves, suggesting its home has an unusually strong magnetic field.
- Life
Readers wrangle with definition of ‘species’
Readers asked about the definition of "species," a new atomic clock and how a neutron star collision produces heavy elements.
- Science & Society
We’ll be watching the skies, plus a lot more, this year
Acting Editor in Chief Elizabeth Quill predicts 2018 could be a year full of important space discoveries.
- Planetary Science
How to keep humans from ruining the search for life on Mars
As the race to put humans on Mars heats up, researchers worry they are running out of time to find life on the Red planet.
- Astronomy
White dwarf’s inner makeup is mapped for the first time
The first map of the internal composition of a white dwarf star shows these stellar corpses contain more oxygen than expected, challenging stellar evolution theories.
- Planetary Science
NASA is headed to Earth’s outermost edge
NASA’s upcoming GOLD mission will study the charged border between Earth and space.
- Astronomy
Aliens ruled out for why Tabby’s star flickers
The first real-time observations of Tabby’s star flickering put the final nail in the “alien megastructure” coffin.
- Astronomy
86 stars get official names
The International Astronomical Union has released 86 newly official star names, based, in part, on historical star names from various indigenous cultures.
- Science & Society
Watch our most-viewed videos of 2017
Cassini’s demise, cuttlefish and the Curiosity rover topped our list of most popular videos of 2017.
- Planetary Science
Here’s what you might have missed in space this year
Missions to Jupiter and Saturn made big headlines, and 2017 also saw exciting updates from missions of years past.
