Space
- Space
All of the bases in DNA and RNA have now been found in meteorites
Scientists have detected adenine and guanine in meteorites for decades and seen hints of uracil. But cytosine and thymine had remained elusive.
- Physics
Gravitational waves gave a new black hole a high-speed ‘kick’
Ripples in spacetime revealed that two black holes united into one, which then sped off at around 5 million kilometers per hour.
- Astronomy
‘Goldilocks’ stars may pose challenges for any nearby habitable planets
Orange dwarfs emit far-ultraviolet light long after birth, stressing the atmospheres of potentially life-bearing worlds.
- Planetary Science
U.S. planetary scientists want to explore Uranus and Enceladus next
A report on recommendations for the next 10 years of U.S. planetary science prioritizes sending an orbiter to Uranus and an “orbilander” to Enceladus.
- Planetary Science
Europa may have much more shallow liquid water than scientists thought
Mysterious pairs of ridges scar Jupiter’s moon Europa. Analyzing a similar set in Greenland suggests shallow water is behind the features’ formation.
- Planetary Science
Here’s how NASA’s Ingenuity helicopter has spent 1 year on Mars
The first flying robot on the Red Planet arrived as a technology demonstration. It’s now a trusty scout for its rover partner, Perseverance.
- Astronomy
Crumbling planets might trigger repeating fast radio bursts
Mysterious blasts of cosmic radio waves might be due to planets sweeping extremely close to their host neutron stars.
- Astronomy
A newly discovered planet renews debate about how some giant worlds form
An implosion of gas may have given birth to this young exoplanet, which orbits too far from its star to have been built up bit by bit, researchers say.
- Planetary Science
This is the biggest known comet in our solar system
The nucleus of comet Bernardinelli-Bernstein is about 120 kilometers across — about twice the width of Rhode Island — and is darker than coal.
- Planetary Science
New thermal maps of Neptune reveal surprising temperature swings
Neptune's atmospheric temperatures show a global drop and later, a weird isolated spike at the south pole. Scientists don't yet know why.
- Planetary Science
Mars has two speeds of sound
High-pitched clacks from a laser on NASA’s Perseverance rover zapping rocks traveled faster than the lower-pitched hum of the Ingenuity helicopter’s blades.
- Astronomy
A star nicknamed ‘Earendel’ may be the most distant yet seen
Analyzing Hubble Space Telescope images revealed a star whose light originates from about 12.9 billion light-years away, researchers say.
