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NASA is considering four proposed space telescopes and will likely launch one of them in the 2030s as a flagship mission, like the Hubble Space Telescope or the James Webb Space Telescope:
- Large Ultraviolet/Optical/Infrared Surveyor (LUVOIR), a multipurpose follow-up mission to the Hubble Space Telescope and the James Webb Space Telescope with a 8-16 meter (26-52 foot) primary mirror that would make discoveries on exoplanets, dark matter, star formation, the earliest galaxies of the universe, and within our own solar system.
- Habitable Exoplanet Imaging Mission (HabEx), a smaller telescope than LUVOIR with a 4-8 meter (13-26 foot) primary mirror and instruments sensitive to ultraviolet, visible and near-infrared light to find worlds outside our solar system that could harbor life. HabEx could fly with a coronagraph, a component inside the telescope to mask starlight and reveal faint reflections from planets, or a starshade, a separate vehicle flying in formation with the telescope to blot out starlight.
- Origins Space Telescope, a far-infrared surveyor with a primary mirror up to 9 meters (30 feet) in diameter that would be a successor to NASA's Spitzer Space Telescope and the European Space Agency's Herschel Space Observatory. The Origins Space Telescope will investigate how galaxies, stars and planets form, search for water and greenhouse gases on exoplanets, and study interstellar dust.
- The Lynx X-ray telescope, following in the footsteps of NASA's Chandra X-ray Observatory and ESA's XMM-Newton mission, will study the dawn of the first black holes, and the epoch of reionization, when the first galaxies and light sources emerged after the Big Bang.
The LUVOIR space telescope would be the closest to a successor of Hubble, covering a similar range of wavelengths. It is also similar in size to two recent proposals: the High Definition Space Telescope (HDST) and the Advanced Technology Large-Aperture Space Telescope (ATLAST).
The JWST was not designed to be serviceable and will likely only last for 5-10 years after its planned launch in October 2018. It has a 6.5 meter primary mirror. Hubble has been operating since 1990 but only has a 2.4 meter primary mirror.
The Wide Field Infrared Survey Telescope will launch in the 2020s.
(Score: 2) by realDonaldTrump on Tuesday July 25 2017, @02:38AM
On the weekend I commissioned an aircraft carrier. They painted it grey, which people say is the color of success. And they're entitled to that opinion. But my opinion is that gold is the color of success. I always gravitate to gold and I've been very, very successful. If I put my name in big grey letters on top of my buildings? No one would look because grey is too boring. My Navy guy says the grey paint job is to make the ships hard to see. The aircraft carrier isn't hard to see. It's hard to look at, because it looks boring. But it's easy to see because it's huge. And I understand that it can be seen on the radar. And probably it can be seen from space. Mike Rogers says we need a Space Corps so we can win wars in space. Very important! 🇺🇸