Astronomy
- Space
Paradoxically, white dwarf stars shrink as they gain mass
Observations of thousands of white dwarf stars have confirmed a decades-old theory about the relationship between their masses and sizes.
- Astronomy
50 years ago, Mauna Kea opened for astronomy. Controversy continues
Current plans to build a new telescope on the volcano sparked the latest conflict.
- Physics
The physics of solar flares could help scientists predict imminent outbursts
Physicists aim to improve space weather predictions by studying the physical processes that spark a solar flare.
- Space
An Antarctic ice dome may offer the world’s clearest views of the night sky
The highest point in East Antarctica could be an ideal place for an optical telescope, a new study finds.
- Astronomy
The star cluster closest to Earth is in its death throes
Gaia spacecraft observations of stars’ motion within and fleeing the cluster suggest the 680-million-year-old Hyades has only 30 million years left.
- Astronomy
This is the first picture of a sunlike star with multiple exoplanets
A first family portrait reveals a weird cousin of the solar system: a star about the mass of the sun orbited — distantly — by two massive gas giants.
- Astronomy
Pinning down the sun’s birthplace just got more complicated
Many astronomers think that the sun was born in a loose association of thousands of stars. A new study suggests there’s another possibility.
- Astronomy
The closest images of the sun ever taken reveal ‘campfire’ flares
The first images from Solar Orbiter, a NASA-European Space Agency spacecraft, show tiny, never-before-seen flares across the sun’s surface.
- Space
This is the most comprehensive X-ray map of the sky ever made
A new X-ray map of the entire sky, using data from the eROSITA telescope’s first full scan, looks deeper into space than any other of its kind.
- Space
A newfound exoplanet may be the exposed core of a gas giant
A planet about 734 light-years away could be a former gas giant that lost its atmosphere or a failed giant that never finished growing.
- Space
Colliding black holes may have created a surprising flare of light
A flare-up after a gravitational wave outburst may be the first sighting of light from colliding black holes.
- Particle Physics
Physicists spot a new class of neutrinos from the sun
Researchers with the Borexino experiment in Italy have detected neutrinos produced in the secondary fusion process taking place in the sun’s core.
