Comet C/2025 R3 PanSTARRS is days away from its close pass of the sun during an event known as perihelion.
"They are truly ready for long duration space flights and lunar habitation."
Three Earth observation satellites, developed by the European Space Agency (ESA) with European partners, and due to launch later this year, have completed their functional and environmental tests and are ready to travel to the European spaceport in French Guiana. But first, journalists were invited to have one last look.
As Artemis 2 approached, my anticipation was mixed with uncertainty. Would this new Moon mission spark the wonder and excitement I'd felt during Apollo? Those doubts didn't last long.
I want you to imagine a scene. It's the red carpet. It's the night of the Oscars, or the Emmys, or the participation trophy ceremony for your kid's soccer team. That's not the essential part of the metaphor. What matters is who is there: Brad Bradington's adoring fans, curious onlookers, and of course the paparazzi, ready to take their shot.
Exoplanets are planets that orbit stars outside of our own Solar System. The discovery and study of these distant worlds have revolutionized our understanding of planetary formation and the potential for life beyond Earth.
Some of the most scientifically important astronomical objects are the ones that push the boundaries of definitions. These objects can exist in the grey areas between competing definitions. They motivate astronomers to develop a deeper and more comprehensive understanding of Nature. One of these important dividing lines places planets on one side and stars on the other.
A pair of dwarf galaxies in the giant Virgo Cluster show what can happen when these stellar cities interact. Scientists at the University of Michigan focused the James Webb Space Telescope (JWST) onto the galaxies NGC 4486B and UCD736 and found each of them sporting "overmassive" black holes at or near their hearts. Those supermassive black holes comprise a large fraction of each galaxy's mass.
Blue Origin’s New Glenn rocket stands in the launch position at Launch Complex 36 at Cape Canaveral Space Force Station ahead of prelaunch testing for the NG-3 mission. Image: Blue Origin
Days ahead of the planned third launch of a New Glenn rocket, Blue Origin was tapped by the U.S. Space Force to proceed towards developing its first launch site in California.
SpaceX just conducted the first full-duration static fire test with the upper stage of its 'V3' Starship, clearing a big hurdle on its path to launch, which is expected next month.
Using the James Webb Space Telescope, astronomers have investigated the giant exoplanet 29 Cygni b — work that could clarify the line between planets and stars.
On Friday, April 10, 2026 at 5:07 p.m. PDT (02:07 p.m. EDT), the first astronauts to travel to the Moon in more than fifty years made it back to Earth when their Orion capsule (Integrity) splashed down in the Pacific Ocean off the coast of San Diego. In addition to being a historic accomplishment and a major step towards returning astronauts to the Moon for the first time since the Apollo Era, the Artemis II flight set a new record for distance traveled by a crewed spacecraft.
The head of the U.S. Space Force said the United States' ongoing war in Iran shows the service has become a fully "combat credible" force.
From "The Matrix" to "Tron: Legacy," these sweet sci-fi soundtracks are perfect for serious audio aficionados.
Watch Regulus disappear and reappear before your eyes during its last North American occultation in the current cycle.
Two NASA astronauts had some fun during the ISS' capture of a robotic cargo spacecraft on April 13, pretending to hold onto it from into the station.
Mars rovers have spearheaded the exploration of the planet over the last 20 years. MSL Curiosity and Perseverance are awe-inspiring machines, and Spirit and Opportunity were similarly impressive. Collectively, they've greatly improved our understanding of Mars and its ancient climate and shed light on its potential ancient habitability.
Want to make the most of the long spring and summer days? Take to the air with 25% off this Potensic Atom 2 drone, complete with three batteries for an hour-and-a-half of flight time.
The Dark Energy Spectroscopic Instrument has completed its five-year mission to build the most comprehensive 3D map of the universe to date — but its exploration of the universe continues.
The Jupiter-bound spacecraft JUICE spotted the interstellar invader comet 3I/ATLAS spraying enough water into space to fill 70 swimming pools a day.
The new Artemis 2 NOVA documentary "Return to the Moon" will air on PBS Wednesday (April 15) to offer a behind-the-scenes look at the moon mission.
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