Astronomy
- Physics
Readers inquire about a Neptune-sized moon, nuclear pasta and more
Readers had questions about a Neptune-sized moon, nuclear pasta and the search for extraterrestrial life.
- Physics
Scientists’ collection of gravitational waves just got a lot bigger
The biggest black hole merger yet seen created one set of the spacetime ripples.
- Astronomy
Astronomers have measured all the starlight ever emitted
Astronomers used distant blazars to tally up all the stray photons roaming through space.
- Science & Society
Readers react to the SN 10 and Jocelyn Bell Burnell
Readers expressed their thoughts about the SN 10 scientists, Saturn's hexagons and Jocelyn Bell Burnell.
- Astronomy
Astronomers spot another star that flickers like Tabby’s star
The irregular flickering of star VVV-WIT-07 is reminiscent of Tabby’s star, which brought speculation of alien megastructures.
- Astronomy
One of Earth’s shimmering dust clouds has been spotted at last
Almost 60 years after a Polish astronomer spotted clouds of dust orbiting Earth near the moon, astronomers have detected those clouds again.
- Planetary Science
Hints of Oort clouds around other stars may lurk in the universe’s first light
Sifting through the universe’s early light could reveal planetary graveyards orbiting other stars.
- Astronomy
Hubble has been busy since coming back online
Since getting back to work on October 26, the Hubble Space Telescope has been studying red dwarf flares, among other celestial objects.
- Astronomy
The Milky Way feasted on a smaller galaxy 10 billion years ago
The Milky Way swallowed another galaxy billions of years ago, and the leftover stars are still roaming the sky.
- Astronomy
Three gas clouds nearly grazed the edge of the Milky Way’s black hole
Gas clumps cozy up to the Milky Way’s enormous black hole, new observations reveal.
- Astronomy
The planet-hunting Kepler space telescope is dead
The Kepler space telescope is officially out of fuel and will hunt planets no more, NASA announced.
- Astronomy
Readers wonder about a hydrogen wall, pig lung transplants and more
Readers had questions about a glow at the edge of the solar system, pig lung transplants, the use of the word promiscuous and more.
