NASA has completed its final inspection of the primary mirror on the Roman Space Telescope, which measures 2.4 meters (7.9 feet) in diameter and contains a layer of silver hundreds of times thinner than a human hair, at 400 ...
Astronomy
Jun 1, 2026
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It's 2234, you're on your annual class field trip touring exoplanets, and your teacher informs everyone they can pick one more exoplanetary system to explore before heading back to Earth. You and your classmates are exhausted ...
Astronomy
Jun 1, 2026
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The focus of this NASA/ESA Hubble Space Telescope image is an active spiral galaxy on a journey lasting hundreds of millions of years. The galaxy Messier 88 (M88), also known as NGC 4501, is located about 63 million light-years ...
Astronomy
Jun 1, 2026
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Think about a census. You could photograph every house in the country and produce a beautiful map, but without knocking on doors and asking questions, you'd know almost nothing about the people living in them.
Astronomy
May 29, 2026
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On the night of 18 December 2019, a star in our satellite galaxy, the Large Magellanic Cloud, briefly got brighter. Not dramatically nor explosively, just a smooth symmetrical rise and fall in brightness lasting about an ...
Astronomy
May 28, 2026
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Astrophysicists think that black hole masses are hierarchical. The largest are supermassive black holes (SMBH) like the one at the center of the Milky Way and other galaxies. Stellar mass black holes are born of collapsing ...
Astronomy
May 27, 2026
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Planetary nebulae like the Crystal Ball Nebula (NGC 1514) are sort of like stellar obituaries. Though crystal balls supposedly reveal the future, the Crystal Ball Nebula tells us more about the past. It shows us how a binary ...
Astronomy
May 25, 2026
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When you look up at the sky on a sunny day, the sun might seem like a bright spot, unchanging in the sky. But the sun is a complex, dynamic celestial body, wrapped in electrical currents and magnetic fields that constantly ...
Astronomy
May 24, 2026
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Look closely at this image from NASA's Hubble Space Telescope and you'll see galaxies of various shapes and sizes clustered together toward the center-left of the image. A few foreground stars shine brightly and are easily ...
Astronomy
May 22, 2026
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The 8.1-meter Gemini North telescope, located on the summit of Maunakea in Hawai'i, has captured NGC 1514, nicknamed the Crystal Ball Nebula, in awe-inspiring detail. This nebula, with its mesmerizing glow of gas, harbors ...
Astronomy
May 21, 2026
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