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Tag: Hubble

Hubble photographs playful galactic duo

Hubble photographs playful galactic duo

Science
Aug. 9 (UPI) -- NASA shared an image, recently captured by Hubble, of the galactic duo UGC 2369 on Friday. The image showcases the pair caught in a playful dance. Long, long ago, the galaxies were separate, but today, they are in the midst of colliding. Slowly, their mutual gravitational attraction is pulling them closer and closer. As they've become entwined, gravity has distorted their features, altering their appearances. "A tenuous bridge of gas, dust and stars can be seen connecting the two galaxies, created when they pulled material out into space across the diminishing divide between them," NASA wrote in a news release. Still, despite their contortions and shared name, the two galactic entities remain visibly distinct. Millions of years from now, however, the pair will be almost c...
Hubble, Spitzer telescopes conduct chemical survey of mid-size exoplanet

Hubble, Spitzer telescopes conduct chemical survey of mid-size exoplanet

Science
July 2 (UPI) -- For the first time, scientists, with the help of a pair of NASA space telescopes, have identified the chemical signature of the atmosphere surrounding a mid-sized exoplanet. In size, mass and composition, Gliese 3470 b is like a cross between Earth and Neptune -- a rocky core surrounded by a thick layer of gas. The exoplanet weighs 12.6 Earth masses. Neptune by comparison, weighs 17 Earth masses. Mid-sized planets like Gliese 3470 b are common in other planetary systems, but are absent in our own solar system. Despite their ubiquity, researchers have been unable to confirm the chemical composition of a mini-Neptune exoplanet. By characterizing the makeup of Gliese 3470 b's atmosphere, scientists may be able to determine how medium-sized planets form. "This is a big disco...
Hubble image showcases supernovae-filled spiral galaxy

Hubble image showcases supernovae-filled spiral galaxy

Science
June 14 (UPI) -- The picture perfect spiral galaxy NGC 4051, positioned in the constellation of Ursa Major, is speckled with the bright flashes of dying stars. The plethora of supernovae scattered throughout the arms of the spiral galaxy make NGC 4051 an ideal portrait subject for the Hubble Space Telescope. On Friday, NASA shared NGC 4051's latest head shot. "When massive stars die at the end of their short lives, they light up the cosmos with bright, explosive bursts of light and material known as supernovae," NASA reported. "A supernova event is incredibly energetic and intensely luminous -- so much so that it forms what looks like an especially bright new star that slowly fades away over time." Astronomers first spotted a supernova originating from NGC 4051 in 1983. Scientists observ...
Hubble photographs colliding galaxies

Hubble photographs colliding galaxies

Science
March 8 (UPI) -- Millions of galaxies across the universe are colliding right now. Two of them can be seen in a new Hubble image. Unlike a car crash, asteroid strike or planetary smashup, all of which happen quickly, galactic collisions play out over millions of years. The drawn-out nature of the drama offers astronomers and their telescopes -- on the ground and in space -- plenty of time to document the cosmic phenomena. Many galactic collisions are named as a single entity. Astronomers named the duo in the new Hubble image NGC 6052. When William Herschel first spotted NGC 6052 in 1784, he and his fellow astronomers classified the object as a single irregular galaxy. Scientists now know NGC 6052 is not one oddly shaped galaxy, but two galaxies -- each warped by the gravity and momentum ...
Mother of the Hubble: Tributes paid to Nasa scientist

Mother of the Hubble: Tributes paid to Nasa scientist

Science
Tributes are being paid to Dr Nancy Grace Roman, the first woman to hold an executive position at the US space agency Nasa. Dr Roman was known as "Mother of the Hubble" for her work on the early stages of the Hubble Space Telescope. Nasa said her most important legacy was the advancement of women in the sciences and the generations of young scientists she inspired. She died in Maryland on Wednesday at the age of 93. Stars' tears over space-race drama How black women first started working for Nasa Dr Roman was fascinated by the clear night skies of her childhood home in Nevada from a very early age. She joined an astronomy club when she was just 11 and her passion for stargazing continued throughout her life. But the young Dr R...