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Uranus, Neptune may be magma worlds, not ice giants

Uranus and Neptune remain two of the most mysterious objects in the solar system, primarily because they have been visited only by NASA's Voyager 2 spacecraft in 1986 and 1989, respectively. Their "ice giant" moniker comes ...

How NASA taught four astronauts to read the moon

How do you teach someone to look at the moon? Not glance at it, the way we all have on a clear night, but truly read it, the way a geologist reads a hillside. That was the challenge NASA set itself before Artemis II, because ...

Greece says preparing 'historic' ISS space mission

Greece is planning "a first historic mission" to send a Greek astronaut to the International Space Station, Prime Minister Kyriakos Mitsotakis' office announced Friday.

Smile spacecraft reaches science orbit

The European-Chinese Smile mission reached its designated science orbit on June 20, 2026. The team is now embarking on a two-month campaign to commission the spacecraft, which involves switching on and testing its toolbox ...

Image: Galaxy pair NGC 3504 and NGC 3512

This striking pair of galaxies located 80 million light-years from Earth lies in the constellation Leo against a backdrop of distant galaxies. The barred spiral galaxy NGC 3504 is seen on the right, and the spiral galaxy ...

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'Super-puff' planets less dense than cotton candy discovered by international team
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Astronomy
Binary black hole signal probes event horizon region for first time
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ALMA spots a nine-member stellar family in the act of formation
Planetary Sciences
Asteroid zooming past Earth on Saturday visible to stargazers
Astronomy
Euclid captures 60 million stars in sharpest broad view of Milky Way's core
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Euclid mission view of Milky Way's heart previews upcoming survey by NASA's Roman
Astronomy
Solar blast's magnetic cloud grew by one-fifth en route to Earth, spacecraft reveal
Planetary Sciences
Did gravitational tides cause Earth's extinctions?
Planetary Sciences
Images: Perseverance reaches 'marathon' milestone on Mars
Astrobiology
We discovered a new rock type containing garnet inside a meteorite fragment from Mars
Astronomy
Image: Roman Telescope arrives at Kennedy Space Center
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Hot Jupiter endures star-powered barbecue
Astrobiology
How long can plants survive on Earth? New model suggests up to 2 billion more years
Astronomy
Einstein Probe detects mysterious X-ray transient that doesn't fit any known class
Astronomy
Hubble details early galaxy transforming neighborhood 1.4 billion years after Big Bang
Astronomy
Hidden dark force may slow cosmic structure growth, not speed it up
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Webb pinpoints millions of stars within Cigar galaxy
Planetary Sciences
Happy Asteroid Day! Prize-winning plan focuses on space infrastructure

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Primate evolution kept aging rates stable for 25 million years despite lifespan gaps
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World's largest particle smasher halts for upgrade to boost hunt for dark matter
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The bond between humans and dogs remains remarkably consistent across societies, cross-cultural study reveals
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Coastal and estuarine carbon removal technique may backfire when pushed too far
Cell & Microbiology
Peptide alternative to antibiotics could combat antimicrobial resistance crisis
Evolution
Newly identified fossil sheds light on evolutionary history of saber-toothed cats
Environment
Burned-home soils showed uneven lead, arsenic contamination after Los Angeles wildfires
General Physics
Non-Hermitian geometry reveals when quantum amplification depends only on start and end points
Evolution
Lamprey brain atlas reveals 450-million-year blueprint of vertebrate brains
Other
Saturday Citations: Predicting earthquakes; two types of water; observing event horizons
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New workflow transforms nonfunctional protein scaffolds into active enzymes
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Two humpback whales set records swimming between Australia and Brazil
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Coal pollution reaches one of Earth's most remote mountain regions
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Metal hydride molecule trapped with laser light opens path to ultracold hydrogen
Ecology
An iron-driven chain reaction may trigger mass death of harmful algae blooms
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Beetle-like borings in 70-million-year-old titanosaur fossils reshape Lo Hueco fossil story
Archaeology
Unknown 4,000-year-old stone circle in Belfast uncovered by archaeologists
Optics & Photonics
Clean crystal surface lets single molecules hit ultimate quantum limit
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Evidence identifies ancient Aboriginal mining in the Riverland
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A star's death throes involve a lot of kicking

When stars like our sun age, they puff up into red giants. Their bubbling outer mass gradually escapes into space, and their remaining cores contract into white dwarfs. Since most stars end their lives this way, the universe ...

New study assesses Titan's resources and their potential uses

Saturn's largest moon, Titan, is a unique environment in our solar system. It is the only moon (or body beyond Earth) to have a dense, nitrogen-rich atmosphere, and its methane cycle is very similar to Earth's hydrological ...

The galaxy's spin is hiding in the hum of gravitational waves

Picture the Milky Way not as a silent pinwheel of stars but as something that quietly sings. Scattered through it are millions of pairs of dead stars, mostly white dwarfs, whirling around each other and stirring ripples in ...

The hidden physics complicating interstellar lightsails

If we're to reach another star, chemical propulsion will not get us there in any reasonable time frame. We're going to need a different propulsion technology, and one of the most promising seems to be a solar sail. These ...