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NASA Science
3 天之前 · Dr. Nicola (Nicky) Fox, the Associate Administrator (AA) for the Science Mission Directorate (SMD) for NASA, visited the University of Delaware to discuss the scientific missions being undertaken by the SMD and to visit with various groups on campus.
James Webb Space Telescope - NASA Science
2025年1月24日 · Once upon a time, the core of a massive star collapsed, creating a shockwave that blasted outward, ripping the star apart as it went. When the shockwave reached the star’s surface, it punched through, generating a brief, intense pulse of X-rays and ultraviolet light that traveled outward into the surrounding space.
Universe - NASA Science
2025年1月2日 · New Year, New Era: Very Cold Detectors Reveal the Very Hot Universe of X-Ray Astronomy. NASA's XRISM mission is transforming X-ray astronomy with advanced detectors operating at near absolute zero.
NASA’s Hubble Traces Hidden History of Andromeda Galaxy
2025年1月16日 · In the years following the launch of NASA’s Hubble Space Telescope, astronomers have tallied over 1 trillion galaxies in the universe.But only one galaxy stands out as the most important nearby stellar island to our Milky Way — the magnificent Andromeda galaxy (Messier 31).It can be seen with the naked eye on a very clear autumn night as a faint cigar-shaped object roughly the apparent ...
NASA Planetary Science
2024年12月3日 · Planetary Science Missions. NASA’s robotic explorers gather data to help scientists understand how the planets formed, what triggered different evolutionary paths among planets, what processes have occurred and are active, and …
Science News - NASA Science
2025年1月28日 · The subject of this NASA/ESA Hubble Space Telescope image is a supernova-hosting galaxy located about 600 million light-years away in the constellation Gemini.
Overview - NASA Science
2024年10月22日 · The Universe’s History. The origin, evolution, and nature of the universe have fascinated and confounded humankind for centuries. New ideas and major discoveries made during the 20th century transformed cosmology – the term for the way we conceptualize and study the universe – although much remains unknown.
Solar System Facts - Science@NASA
2025年1月17日 · Moons. Our solar system has hundreds of moons orbiting planets, dwarf planets, and asteroids. Of the eight planets, Mercury and Venus are the only ones with no moons, although Venus does have a quasi-satellite that has officially been named Zoozve.. The giant planets Jupiter and Saturn lead our solar system’s moon counts.
Science for Everyone - NASA Science
6 天之前 · Connect with and experience NASA's mission of scientific exploration and discovery, there's something to awaken the curiosity in everyone.
NASA's Webb, Hubble Telescopes Affirm Universe's ... - Science@NASA
2024年3月11日 · When you are trying to solve one of the biggest conundrums in cosmology, you should triple check your homework. The puzzle, called the “Hubble Tension,” is that the current rate of the expansion of the universe is faster than what astronomers expect it to be, based on the universe’s initial conditions and our present understanding of the universe’s evolution.