Space
- Cosmology
Voyager 2 spacecraft enters interstellar space
Voyager 2 just became the second probe ever to enter interstellar space, and the first with a working plasma instrument.
- Astronomy
Astronomers find far-flung wind from a black hole in the universe’s first light
The detection of black hole winds far from their host galaxy could reveal details of how galaxies and black holes grow up together.
- 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.
- Planetary Science
NASA’s OSIRIS-REx spacecraft has finally arrived at asteroid Bennu
Planetary scientists hope the probe will reveal if such carbon-rich asteroids helped kick-start life on Earth.
- Astronomy
Astronomers have measured all the starlight ever emitted
Astronomers used distant blazars to tally up all the stray photons roaming through space.
- Planetary Science
NASA’s InSight lander has touched down safely on Mars
NASA’s InSight lander just touched down on Mars for a years-long study of the Red Planet’s insides.
- Planetary Science
An orbiter glitch may mean some signs of liquid water on Mars aren’t real
The way that scientists process data from a Mars orbiter creates what look like signs of saltwater, but may actually be nothing, a study finds.
- 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.
- Planetary Science
NASA’s Mars 2020 rover will look for ancient life in a former river delta
NASA’s Mars 2020 rover is going to Jezero crater, the site of an ancient river delta that may harbor signs of life.
- Planetary Science
Tiny satellites will relay news of InSight’s Mars landing in minutes, not hours
NASA’s InSight Mars lander brought along two tiny CubeSats to send details about the spacecraft’s landing to Earth in almost real time.
- 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.
