Comet MAPS is about to face its ultimate test as it sweeps just 101,000 miles above the sun's surface.
Modern cosmology is built upon three theoretical pillars: special relativity, Newtonian gravity, and quantum mechanics. Each is supported by a wealth of experimental evidence, but each describes the physical world in a way that contradicts the other two.
"If an event is particularly bad, there are some places in the capsule, such as storage bays and down by the toilet, that the crew can go to."
Unistellar co-founder tells Space.com about how citizen scientists are using smart telescopes to engage in planetary defense.
Early April could be an exciting time for sky watchers, as two comets take center stage: R3 Pan-STARRS and sungrazer A1 MAPS.
The movie that took Shakespeare to the stars, and wrote the blueprint for movie space opera.
The crew's 10-day mission will be filled with science, spacecraft tests, medical checks, survival training and more.
"Playing military characters is always interesting for me. They're all homages to a family member."
The four astronaut's of NASA's Artemis 2 mission arrived in style at Kennedy Space Center ahead of their historic moon mission.
Striking images from Hubble, Webb, and the Very Large Telescope dive into Saturn's atmosphere, capture the Crab Nebula's expansion, and reveal a newborn planet.
The first full moon of spring, known as the Paschal Moon, sets the date for Easter each year.
This month’s episode showcases the stars and planets visible on April evenings. We’ll explore full-Moon quirks; spot Venus and Jupiter after sunset; learn about Gemini, the celestial twins; and hunt for meteors toward month’s end. So grab your curiosity, and come along on this month’s Sky Tour.
"It ain't about racism. It's about the human condition."
If you thought the current crop of satellite megaconstellations was bad, you’re going to be horribly disappointed by new proposals from both SpaceX and a company called Reflect Orbital. Their combined plans would fundamentally alter the night sky as we know it, and the global astronomical community is sounding the alarm - most notably letters from the Royal Astronomical Society (RAS), the European Southern Observatory (ESO), and the International Astronomical Union (IAU) strongly opposing the plan, which currently sits with America’s Federal Communications Commission (FCC) for approval.
Artemis 2 will launch four astronauts around the moon no sooner than April 1. Why won't this quartet land on the lunar surface?
Auroras may be visible from Alaska to Wyoming tonight as Earth braces for impact from a speedy coronal mass ejection.
Eight CubeSats and one payload supported by the European Space Agency (ESA) reached orbit, where they will demonstrate various applications aimed at improving how data is sent around and processed. Thanks to these demonstrations, practical and – sometimes – even life-saving data enabled from space will move more efficiently and reach the right actors on time in the future.
It's not often that astronomers can observe huge changes in a galaxy's brightness over the course of a few years. Most galaxies change in brightness (and other characteristics) over millions or billions of years. So, when images of the 10-billion-light-year distant galaxy J0218-0036 showed that it dimmed down by a twentieth of its previous brightness in just 20 years, observers were surprised. What could cause it to do that? That's not "normal" for AGN.
A massive X1.4 solar flare won't endanger NASA's four Artemis 2 astronauts on their way to the moon.
Astronomers have spotted the most distant and brightest "space laser" ever seen, and it's blasting from a galaxy collision that occurred when the universe was half its current age.
"You dare agree with me? Prepare to meet your horrible doom!"
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