Astronomy
- Astronomy
This planetary remnant somehow survived the death of its sun
A small, sturdy piece of planet survived the collapse of its sun and now orbits the dead star.
- Physics
The LIGO and Virgo gravitational wave detectors are back on
Souped-up instruments could spot never-before-seen sources of gravitational waves.
- Astronomy
4 things we’ll learn from the first closeup image of a black hole
Scientists are gearing up to release the first image of the black hole at the center of the galaxy. Here’s what they hope to find out.
- Astronomy
X-ray ‘chimneys’ connect the Milky Way to mysterious gamma-ray bubbles
Two columns of X-rays that are hundreds of light-years long could explain the existence of giant bubbles of energetic light that sandwich the galaxy.
- Astronomy
One of the strongest known solar storms blasted Earth in 660 B.C.
Ice cores and tree rings reveal that Earth was blasted with a powerful solar storm 2,610 years ago.
- Astronomy
Merging magnetic blobs fuel the sun’s huge plasma eruptions
Solar eruptions called coronal mass ejections grow from a series of smaller events, observations show.
- Astronomy
Readers have questions about Ultima Thule, thirsty plants and vitamin D
Readers had comments and questions about Ultima Thule, photosynthesis and more.
- Astronomy
The first planet Kepler spotted has finally been confirmed 10 years later
Astronomers had dismissed the first exoplanet candidate spotted by the Kepler space telescope as a false alarm.
- Cosmology
Hidden ancient neutrinos may shape the patterns of galaxies
The gravitational pull of subatomic particles born in the universe’s first second seem to influence how galaxies cluster into rings.
- Astronomy
3 explanations for ‘Oumuamua that aren’t alien spaceships
Astronomers are coming up with some creative ideas to explain the weird behavior of the first known interstellar object.
- Astronomy
Colliding neutron stars shot a light-speed jet through space
A stream of particles created in a neutron star crash, detected in 2017 using gravitational waves, could explain certain mysterious flashes of light.
- Physics
Supernovas show the universe expands at the same rate in all directions
Analyzing supernovas indicates that expansion rates agree within 1 percent across large regions of sky.
