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NASA

A 212-Hour Exposure of Orion

The constellation of Orion is much more than three stars in a row. It is a direction in space that is rich with impressive nebulas. To better appreciate this well-known swath of sky, an extremely long exposure was taken over many clear nights in... Continue Reading →

Massive Beauty

NASA’s Juno mission captured this look at the southern hemisphere of Jupiter on Feb. 17, 2020, during the spacecraft’s most recent close approach to the giant planet. Not only is Jupiter the largest planet orbiting the Sun, it contains more... Continue Reading →

Viewing Our Galactic Center

The central region of our galaxy, the Milky Way, contains an exotic collection of objects, including a supermassive black hole weighing about 4 million times the mass of the Sun (called Sagittarius A*), clouds of gas at temperatures of millions... Continue Reading →

M77: Spiral Galaxy with an Active Center

What's happening in the center of nearby spiral galaxy M77? The face-on galaxy lies a mere 47 million light-years away toward the constellation of the Sea Monster (Cetus). At that estimated distance, this gorgeous island universe is about 100 thousand light-years across. Also known... Continue Reading →

Wolf-Rayet Star 124: Stellar Wind Machine

Some stars explode in slow motion. Rare, massive Wolf-Rayet stars are so tumultuous and hot that they are slowly disintegrating right before our telescopes. Glowing gas globs each typically over 30 times more massive than the Earth are being expelled by violent stellar winds. Wolf-Rayet star WR... Continue Reading →

Sharpless-308: The Dolphin Nebula

Blown by fast winds from a hot, massive star, this cosmic bubble is much larger than the dolphin it appears to be. Cataloged as Sharpless 2-308 it lies some 5,200 light-years away toward the constellation of the Big Dog (Canis Major) and... Continue Reading →

NASA’s OSIRIS-REx Students Catch Unexpected Glimpse of Newly Discovered Black Hole

University students and researchers working on a NASA mission orbiting a near-Earth asteroid have made an unexpected detection of a phenomenon 30 thousand light years away. Last fall, the student-built Regolith X-Ray Imaging Spectrometer (REXIS) onboard NASA’s OSIRIS-REx spacecraft detected... Continue Reading →

NGST-10b: Discovery of a Doomed Planet

This hot jupiter is doomed. Hot jupiters are giant planets like Jupiter that orbit much closer to their parent stars than Mercury does to our Sun. But some hot jupiters are more extreme than others. NGTS-10b, illustrated generically, is the closest and fastest-orbiting giant planet yet discovered, circling its home... Continue Reading →

Katherine Johnson: Hidden Figures Nasa mathematician dies at 101

Ms Johnson calculated rocket trajectories and Earth orbits for Nasa's early space missions. She was portrayed in the 2016 Oscar-nominated film Hidden Figures. The film tells the story of African-American women whose maths skills helped put US astronaut John Glenn... Continue Reading →

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