The surprise display was captured on June 9 by aurora chaser Harlan Thomas.
In 1912, astronomer Victor Hess discovered strange, high-energy particles known as "cosmic rays." Since then, researchers have hunted for their birthplaces. Today, we know about some of the cosmic ray "launch pads", ranging from the Sun and supernova explosions to black holes and distant active galactic nuclei. What astronomers are now searching for are sources of cosmic rays within the Milky Way Galaxy.
Extended periods in space can lead to all kinds of health problems. The hazard posed by radiation is well known and is the reason NASA and other space agencies impose limits on the amount astronauts are exposed to. There's also microgravity, which has been studied extensively thanks to regular missions to the International Space Station and long-term studies (like the NASA Twins Study). According to this research, extended periods in microgravity will result in muscle atrophy, bone density loss, changes in eyesight, effects on the cardiovascular and endocrine systems, and even genetic changes.
If our Solar System seems stable, it's because our short lifespans make it seem that way. Earth revolves, night follows day, the Moon moves through light and shadow, and the Sun hangs in the sky. But in reality, everything is moving and influencing everything else, and the fine balance we observe can easily be disrupted. Could passing stars have disrupted Earth's orbit and ushered in dramatic climatic changes in our planet's past?
You can now watch the award-winning documentary "SALLY" about the first American woman in space, Sally Ride, on Disney+ and Hulu.
China's human spaceflight agency just conducted a crucial pad abort test for its Mengzhou spacecraft as it continues toward its goal of putting boots on the moon before 2030.
Paramount announced that the show's five-season mission is coming to an end last week with a heartfelt 'thank you' from the showrunners.
A mystery signal detected high in the sky above Antarctica defies current models of physics and could represent a new particle, scientists say.
The beginning of the industrial development of LISA was among the highlights for the European Space Agency on the second day of the International Paris Air Show.
Astronomers have used the ALMA radio telescope to investigate how planets grow in protoplanetary disks of gas and dust around young stars.
Watch the stunning Mars and Regulus conjunction today with this free livestream
Get ready for a new Roman Empire: A NASA space telescope will detect a staggering wealth of intricate gravitational lenses that could help unlock the mysteries of dark matter.
Staff at the European Southern Observatory have a system to clean the La Silla Observatory's delicate mirrors without breaking them.
Using NASA's Chandra X-ray space telescope, astronomers have discovered an entire galaxy cluster wrapped in a 20 million light-year-wide envelope of charged particles.
The beads are over 3.3 billion years old, and date from the formation of the "Man in the Moon."
A SpaceX Falcon 9 rocket placed 26 Starlink internet broadband satellites into low Earth orbit, lifting off from Vandenberg Space Force Base in California on June 16, 2025.
A SpaceX Falcon 9 rocket lifts off from Space Launch Complex 4 East at Vandenberg Space Force Base shortly after sunset on June 16, 2025, to begin the Starlink 15-9 mission. Image: SpaceX
Update June 17, 1:35 a.m. EDT: SpaceX confirmed deployment of the Starlink satellites.
Shortly after astronomers detected asteroid 2024 YR4 on December 27, 2024, they realized it posed no threat to Earth. But it still might impact the Moon in 2032. The impact debris could threaten satellites and trigger an extraordinarily stunning meteor shower.
Leaks aboard the International Space Station, as well as on SpaceX's Falcon 9 rocket, delayed Axiom's next private astronaut mission, but the crew now has a target launch date of June 19.
Galaxies are vast systems of stars, gas, dust, and dark matter bound together by gravity. Astronomers classify them into several types based on their shape and structure. Here's a breakdown of the main types of galaxies:
There's a good reason the Lego Marvel Infinity Gauntlet has been around since 2021: Few sets are as striking as this.
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