Andrea Gianopoulos
- Indexed articles, last 90 days
- 6
- Latest publication
- Sep 3, 2026
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- Jul 13, 2026
Latest articles
NASA's Hubble Spies Superbubble Scene - NASA Science (opens the original)
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This NASA/ESA Hubble Space Telescope image features a sprawling cosmic vista in the Large Magellanic Cloud, or LMC, the largest of the small galaxies that orbit our Milky Way galaxy. At just 160,000 light-years away, the LMC offers a close look at highly active star birth sites like the one in this image. This photogenic nebula, named LHA 120-N44, or N44, is in the constellation Dorado. N44 is dominated by two features: a vast central void and a shell of dense, dusty gas. The central void is a ‘
NASA's Hubble Tracks New Decagon Encircling Saturn’s South Pole - NASA Science (opens the original)
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Recent observations with NASA’s Hubble Space Telescope have revealed a giant, evolving, 10-sided atmospheric wave encircling Saturn's south pole. This discovery marks the first time a large, regular-sided jet pattern has been observed in the planet's southern hemisphere. The feature appears remarkably similar to Saturn's famous hexagon at its northern pole, but is also distinctly different, suggesting scientists may be witnessing a new atmospheric phenomenon develop on the iconic gas giant. The
Hubble Solves Merger Mystery From Milky Way’s Early Years - NASA Science (opens the original)
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Our home galaxy, the Milky Way, grew to its current size in part by consuming smaller galaxies. Now, new data from NASA’s Hubble Space Telescope shows definitive evidence of a dwarf galaxy merging with the young Milky Way galaxy in the earliest phases of its evolution. This finding extends our knowledge of our galaxy’s history 1.8 billion years farther back in time than before. The results published Monday in the journal Nature Astronomy. The Milky Way today is a massive spiral galaxy home to hu
NASA's Hubble Shows Star Formation in Andromeda Galaxy Winding Down - NASA Science (opens the original)
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A new study using data from NASA’s Hubble Space Telescope finds that star formation in the nearby Andromeda galaxy has undergone a 500-million-year decline, with an even steeper drop in the last 40 million years. Andromeda, a spiral galaxy comparable in size to our Milky Way, is close enough to be seen with the unaided eye from areas with dark skies. Located about 2.5 million light-years from Earth, practically our cosmic backyard, Andromeda offers an opportunity for astronomers to examine its s
Hubble Spies One-Sided Spiral - NASA Science (opens the original)
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The subject of this NASA/ESA Hubble Space Telescope image is a spiral galaxy struggling against titanic forces that appear on galactic scales in space. This is NGC 4654, an intermediate spiral galaxy in the constellation Virgo (the Maiden). It is classified as an "intermediate" because its overall shape lies between spiral galaxies that have a bar across their centers and those that don’t. NGC 4654 has a weak bar structure at its center and is located 72 million light-years from Earth in the Vir
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