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Hace 4 días · galaxy, any of the systems of stars and interstellar matter that make up the universe. Many such assemblages are so enormous that they contain hundreds of billions of stars. Nature has provided an immensely varied array of galaxies, ranging from faint, diffuse dwarf objects to brilliant spiral-shaped giants.
Hace 2 días · How NASA’s Roman Mission Will Hunt for Primordial Black Holes. Astronomers have discovered black holes ranging from a few times the Sun’s mass to tens of billions. Now a group of scientists has predicted that NASA’s Nancy Grace Roman Space Telescope could find a class of “featherweight” black holes that has so far eluded detection.
Hace 3 días · Virgin Galactic Holdings, Inc. is a British-American spaceflight company founded by Richard Branson and the Virgin Group conglomerate which retains an 11.9% stake through Virgin Investments Limited. It is headquartered in California, and operates from New Mexico.
Hace 3 días · Make a colorful work of galactic art. do; Printed Product Downloads. Printable posters, lithographs, postcards, and bookmarks. explore; How Old Are Galaxies? Most galaxies formed more than 10 billion years ago! Learn about how we find the age of galaxies using light. What Is a Galaxy? How many are there? explore; Glossary
Hace 2 días · A supermassive black hole ( SMBH or sometimes SBH) [a] is the largest type of black hole, with its mass being on the order of hundreds of thousands, or millions to billions, of times the mass of the Sun ( M☉ ).
Hace 3 días · The Voyager 1 and 2 spacecraft launched from Earth in 1977. Their mission was to explore Jupiter and Saturn —and beyond to the outer planets of our solar system. This was a big task. No human-made object had ever attempted a journey like that before. The two spacecraft took tens of thousands of pictures of Jupiter and Saturn and their moons.
Hace 2 días · Oh yes, Virgin Galactic might be launching too this week! No details have been shared other than a post to social media that the mission is planned for this coming Saturday. The flight will use VSS Unity like all the others and could likely be its final before Galactic plans to focus entirely on its next generation spaceplanes.
