![]() space station in orbit from 1973 to 1979 Space Shuttle, which flew 135 missions from 1981 to 2011 and deployed many satellites, space probes, and space telescopes Hubble Space Telescope, which has been observing the universe since 1990 Voyager, which explored the outer planets and are now in interstellar space Mars Exploration Rovers, which have been exploring the surface of Mars since 2004 Curiosity, which is a car-sized rover that has been studying the geology and habitability of Mars since 2012 Juno, which is orbiting Jupiter and studying its structure and magnetosphere since 2016 Parker Solar Probe, which is flying close to the Sun and measuring its corona and solar wind since 2018 Perseverance, which is a rover that landed on Mars in 2021 to search for signs of ancient life and collect samples for future return to Earth Ingenuity, which is a helicopter that flew on Mars in 2021 as a technology demonstration James Webb Space Telescope, which is a successor to Hubble that will launch in 2021 to observe the infrared universe and Artemis, which is a program that aims to land the first woman and the first person of color on the Moon by 2024. A NASA astronaut and two Russians are back on Earth after being stuck. Some of its most notable missions include: Apollo, which landed 12 humans on the Moon between 19 Skylab, which was the first U.S. Three astronauts return to Earth after a year in space. NASA has launched hundreds of missions, both crewed and robotic, since its inception. NASA has four main directorates: Aeronautics Research, which conducts research and development on aviation technologies and systems Human Exploration and Operations, which oversees human spaceflight activities, such as the International Space Station (ISS), the Artemis program, and commercial crew and cargo programs Science, which conducts scientific investigations of the Earth, the Sun, the solar system, and the universe and Space Technology, which develops and demonstrates innovative technologies for future space missions. Eisenhower, who signed the National Aeronautics and Space Act, which created NASA from the National Advisory Committee for Aeronautics (NACA) and other federal agencies. NASA was established in 1958 by President Dwight D. federal government responsible for the civil space program, aeronautics research, and space research. This could be a sign of increasing greenhouse gases in Earth’s atmosphere.ĭata from AIM show that NLCs are like a great “geophysical light bulb.” They turn on every year in late spring, reaching almost full intensity over a period of no more than 5 to 10 days.Latest news on NASA, the National Aeronautics and Space Administration, is an independent agency of the U.S. In recent years they have intensified and spread with sightings as far south as Utah and Colorado. ![]() In the past, NLCs were a polar phenomenon confined mainly to the Arctic. One thing is clear, the dust behind the clouds we see now is space dust. Researchers aren’t sure what role Krakatoa’s ash played in those early sightings. They’re still present today, stronger than ever. Scientists of the day guessed they were some manifestation of volcanic dust.Įventually Krakatoa’s ash settled and the sunsets faded, but strangely the noctilucent clouds didn’t go away. Ash from the Indonesian volcano caused such splendid sunsets that evening sky watching became a worldwide pastime. Northern sky watchers first noticed them in 1885 about two years after the eruption of Krakatoa. Noctilucent clouds are a mystery dating back to the late 19th century. ![]() When sunbeams hit those crystals, they glow electric-blue. The clouds are very cold and filled with tiny ice crystals. Seeded by meteoroids, they float at the edge of space more than 80 km above Earth’s surface. The first clouds appeared on May 19, 2015, a bit earlier than researchers expected. The sighting marks the beginning of the 2015 season for noctilucent clouds (NLCs). After a nine-year journey, New Horizons also passed its. Atmospheric carbon dioxide is now 50 percent higher than it was. The first spacecraft to explore Pluto up close, flying by the dwarf planet and its moons in 2015. NASA’s Aeronomy of Ice in the Mesosphere, or AIM, spacecraft has spotted a luminous patch of electric-blue drifting across the Arctic Circle. The global average carbon dioxide set a new record high in 2022: 417.06 parts per million. NASA's AIM spacecraft has spotted a luminous patch of electric-blue drifting across the Arctic Circle.
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