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A new design for a plasma engine fuels on only thin air

Choosing an orbit for a satellite always comes with trade-offs. Very low Earth orbit (VLEO), between 100–450 km (62–280 miles), has distinct advantages. Remote-sensing cameras can take better pictures, communications and ...

Dense galaxies are carving out a bubble in the early universe

When JWST's first science results started rolling in, it was a triumph for scientific vision and persistence. For years, the fate of the powerful space telescope was uncertain. It went way over budget, and for 25 years, troubling ...

How the 2024 solar superstorm drained Earth's radiation belt

In May 2024, Earth experienced its most intense geomagnetic storm since the Halloween storms of 2003. This "superstorm" filled night skies in many parts of the world with colorful aurorae, and it disrupted some infrastructure, ...

Astronomers unmask a supernova impostor

A distant star has captured astronomers' attention over the past decade, teasing them with indications that it will soon explode as a supernova. But new research shows that something else entirely is behind the star's outbursts. ...

Cataract surgery will be needed in space, surgeon predicts

An eye surgeon with a passion for space since childhood predicts that as astronauts start to make journeys to the moon and Mars in the near future, eye surgery in space will eventually become a necessity.

NASA's next great observatory could spot oceans on distant worlds

We've found more than 5,500 exoplanets so far. Dozens of them are in the habitable zones of their parent stars, where, at least in theory, they could host an ocean. But we've never definitively found a liquid ocean on another ...

Rubin observatory peers deep into the famous COSMOS field

The COSMOS field, or Cosmic Evolution Survey Deep Field, is one of the most famous patches of the universe observed by astronomers. Located in the constellation Sextans, this region was photographed by the Hubble Space Telescope ...

What's carving active gullies on Mars? It's not water

Scientists were shocked when they received the first images of Martian gullies. They were even more shocked as those gullies appeared to change over time. Their similarities to gullies seen on Earth were uncanny, but all ...

More news

Astronomy
How big can the universe's first starbursts get?
Planetary Sciences
Release of open AI model trained on 17 years of lunar data maps ice, craters and volcanoes
Astronomy
eROSITA's second data release catalog delivering most comprehensive high-energy census of the cosmos to date
Space Exploration
A new surface atlas of Phobos will help MMX mission collect its samples
Astronomy
Continuous video of black hole radio observations challenges shock wave theory
Astronomy
A galaxy with almost no stars? New Cloud-9 observations strengthen the case
Astrobiology
Asteroid Ryugu's dust reveals nitrogen's slow concentration into complex molecules
Planetary Sciences
Mercury is shrinking more than we thought
Space Exploration
Scientists want to 3D print houses on Mars with the help of yeast
Planetary Sciences
Sun's largest sunspots may have potential to trigger superflares
Planetary Sciences
'Fingerprints' inside the sun could reveal if it once swallowed a planet
Planetary Sciences
BepiColombo measures Mercury's particle bombardment up close
Astronomy
Ancient Swedish Goths had surprisingly accurate calendars
Astronomy
A wandering black hole caught feeding on the run
Planetary Sciences
JWST discovers that Chariklo's invisible rings are changing
Astronomy
Helium measurements clarify conditions seconds after the Big Bang
Astronomy
Beryllium signal identifies stars that have swallowed rocky planets
Astronomy
Discontinuity and disorder: Explaining the luminosity bump in evolved stars
Astronomy
Chandra uncovers 'hypersoft X-ray sources' that may solve two astrophysical puzzles
Space Exploration
Artemis II moonshot commander and pilot are hanging up their astronaut suits at NASA

Other news

Social Sciences
Responsibilities in close social relationships explain Eastern–Western cultural differences
Archaeology
Indigenous Australian population was much larger than previously thought and decimated after First Fleet's arrival
Earth Sciences
Rivers may be carrying more microplastics into the world's oceans than previously thought
Polymers
Tough vehicle and construction plastics dissolve into reusable material with low-waste method
Nanomaterials
New light-emitting nanoparticles can detect subtle chemical differences
Evolution
The surprising history of woolly rhinos: They weren't always creatures of the frozen north
Paleontology & Fossils
First confirmed Diplodocus outside North America reshapes Late Jurassic migration picture
Nanophysics
Room-temperature skyrmion-based synapses could pave the way for energy-efficient AI
Plants & Animals
Parakeets, male or female, love a good fight
Environment
Anger, hope and compassion do little to spur more climate donations
Biochemistry
Hidden receptor interactions may explain past failures of brain disorder drugs
Cell & Microbiology
Scientists discover dispersal mechanism and new gene family in harmful E. coli strains
Earth Sciences
Magma repeatedly breaks and heals during eruptions, microscopic evidence suggests
Cell & Microbiology
AI models enable cross-species mapping of cell biology
Cell & Microbiology
Structural study explains how cells stabilize protective membrane pockets
Optics & Photonics
Speedy electrons for brilliant laser light: Research paves the way for compact, inexpensive free-electron lasers
Evolution
Antibody cocktails could steer viruses into evolutionary dead ends
Evolution
Radiation-tolerant rotifers rebuild broken chromosomes over successive generations
Cell & Microbiology
Three DNA loops prove essential for efficient wing tissue regeneration in fruit flies
Earth Sciences
How prehistoric coastal flooding shaped the Northern Adriatic

We might soon have the technology to reach other star systems

The recent confirmation of an atmosphere around a rocky exoplanet called LHS 1140b has created a wave of interest within the astronomy community. The planet orbits within the habitable zone around its parent star—a red dwarf ...

NASA's Perseverance captures Phobos and Earth

This composite of seven images from the Mastcam-Z instrument aboard NASA's Perseverance Mars rover shows Earth, visible as a small bright dot moving from upper left to lower right, passing behind the Martian moon Phobos on ...

Space kit for future 'away missions' tested in Scotland

Researchers from the University of Leicester and the University of Aberdeen have carried out a series of field demonstrations in Portsoy to test cutting-edge handheld analytical instruments. Designed for use by astronauts ...

Venus's polygonal plains could point to a watery past

Venus may be overwhelmingly inhospitable today, but many planetary scientists believe that it wasn't always this way. Billions of years ago, some observational evidence suggested that our planetary neighbor may have looked ...