Space
- Astronomy
Pluto’s demotion ignores astronomical history
A historical review of asteroids’ planetary status suggests Pluto’s demotion was not justified.
- Astronomy
Plasma rain in the sun’s atmosphere falls in surprising places
Scientists found rain in the sun’s corona where they didn’t expect it, which could help solve the mystery of why the corona is so hot.
- Planetary Science
Satellite smashups could have given birth to Saturn’s odd moons
Nearly head-on collisions between icy moonlets might be responsible for the peculiar shapes of some of Saturn’s moons, computer simulations suggest.
- Astronomy
Maverick asteroid might be an immigrant from outside the solar system
A space rock’s backward orbit could be a hint of unusual origins.
- Planetary Science
China is set to launch a satellite to support a future lunar rover
China is set to launch a satellite to support a future lunar rover that will make the first-ever visit to the farside of the moon.
- Cosmology
These stars may have been born only 250 million years after the Big Bang
Scientists find evidence that stars were forming just 250 million years after the universe was born.
- Animals
Readers amazed by Jupiter discoveries, giant viruses and more
Readers had questions about the latest findings of Jupiter, giant viruses being recognized as a new kingdom of life and tardigrade poop.
- Planetary Science
Another hint of Europa’s watery plumes found in 20-year-old Galileo data
A fresh look at old data suggests that NASA’s Galileo spacecraft may have seen a plume from Jupiter’s icy moon Europa in 1997.
- Astronomy
The recipes for solar system formation are getting a rewrite
A new understanding of exoplanets and their stars is rewriting the recipes for planet formation.
- Astronomy
First 3-D map of a gas cloud in space shows it’s flat like a pancake
An interstellar gas cloud dubbed the Dark Doodad Nebula looks like a wispy, thin cylinder. But it’s actually a flat sheet.
- Astronomy
Gaia delivers a trove of data revealing secrets of the Milky Way
Astronomers are already using Gaia’s new information to estimate the galaxy’s mass, the diameter of exoplanets and more.
- Astronomy
New ideas about how stars die help solve a decades-old mystery
New ideas about stellar evolution help explain why astronomers see so many bright planetary nebulae where they ought not be.
