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Three of the flights had flown above the Kármán line (edge of space), and one was intended to do so. In each of these accidents, the entire crew was killed. As of December 2023, a total of 676 people have flown into space and 19 of them have died. This sets the current statistical fatality rate at 2.8 percent.
This is a diffusing subcategory of Category:2023 in outer space. Articles about astronomical objects discovered in 2023 in the parent category should be moved to this subcategory. This category is for astronomical objects discovered in 2023 .
On 15 September, the Firefly Alpha made its successful flight for a tactically responsive mission for the U.S. Space Force. [27] On November 18, 2023, SpaceX Starship attempted its second flight test, becoming the heaviest rocket to enter space, although the first stage exploded shortly after separation, while the second stage was lost nearly ...
This discovery was found in studies of UHZ1, a very early galaxy containing a quasar, by the Chandra X-ray Observatory and James Webb Space Telescope. [622] [623] 29 November. Astronomers report the discovery of a star, HD 110067, that contains six sub-Neptune exoplanets with radii ranging from 1.94R⊕ to 2.85R⊕. [624]
This list of exoplanets discovered in 2023 is a list of confirmed exoplanets that were first reported in 2023. For exoplanets detected only by radial velocity, the listed value for mass is a lower limit. See Minimum mass for more information. Name Mass (M J) Radius (R J) Period (days) Semi-major axis (AU) Temp. (K) Discovery method Distance (ly) Host star mass (M ☉) Host star temp. (K ...
Recently released photos of two NASA astronauts stranded aboard the International Space Station (ISS) have caused health concerns to rise. Although Sunita Williams and Barry Wilmore were ...
Whether lost at the bottom of the ocean, tucked away in a library’s archives or hidden behind a kitchen wall, this year’s discoveries spanned an astonishing range. The 15 best art, design and ...
NASA scientists report the discovery of LHS 475 b, an Earth-like exoplanet – and the first exoplanet observed by the James Webb Space Telescope. [ 26 ] NASA publishes images of a debris disk surrounding the red dwarf AU Mic , taken by the James Webb Space Telescope, capturing details as close to the star as 5 astronomical units (~750 million ...