Space
- Planetary Science
Charon’s surface cracked when ancient subsurface sea froze
A subsurface ocean on Charon, Pluto’s largest moon, might have once frozen and cracked the moon’s surface, creating some of the ridges and valleys seen today.
- Astronomy
Fast radio burst tracked to its galaxy of origin
After years of searching, astronomers finally track an elusive cosmic radio signal to its home: a galaxy about 6 billion light-years away.
- Cosmology
Celebrating a new way to listen to the universe
Editor in Chief Eva Emerson reflects on the detection of gravitational waves as a historic moment for physics.
- Chemistry
After 75 years, plutonium is still NASA’s fuel of choice
On the 75th anniversary of the discovery of plutonium, the radioactive element is still not a major source of fuel for nuclear power plants in the United States.
- Astronomy
Black hole heavyweights triggered gravity wave event
Those gravity waves came from two black holes more massive than any known outside a galactic core and formed in an environment different than the Milky Way.
- Planetary Science
120 seconds in Pluto’s shadow
A 747 outfitted with a telescope worked with New Horizons to reveal details about Pluto’s atmosphere.
- Astronomy
Planets may emerge from stellar duo gathering icy dust
Gas freezing onto dust grains around a binary star could be setting up a site where comets or even planets might someday form.
- Physics
‘Gravity waves’ is an OK way to refer to gravitational radiation
There’s not lexicographical basis for complaints that ‘gravity wave’ is incorrect usage for gravitational waves.
- Physics
The long road to detecting gravity waves
Thanks to two colliding black holes, Einstein's historic prediction of gravitational waves disturbing the fabric of spacetime has finally been realized.
- Physics
Gravitational waves explained
Colliding black holes send ripples through spacetime that can be detected here on Earth. What are these gravitational waves, and how did Advanced LIGO detect them?
- Physics
Gravity waves from black holes verify Einstein’s prediction
Gravitational waves, tremors in the cosmic fabric of space and time predicted by Einstein a century ago, have finally been detected, opening a new avenue for exploring the universe.
- Astronomy
Readers tussle over top science stories of 2015
Readers tussle over the top spot in our top 25, questions about engineered vocal cords, and more in the February 20 Feedback.
