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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 ...
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 .
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 is a list of lists of deaths of notable people, organized by year. New deaths articles are added to their respective month (e.g., Deaths in February 2025 ) and then linked below. 2025
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 ...
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 ...
A study recently released by the University of British Columbia puts the annual chance that space rocket debris will re-enter the atmosphere and pass through busy airspace at 26%.
The driver of a car that crashed into a school tea party, killing two eight-year-old girls in south-west London, has been rearrested on suspicion of causing death by dangerous driving, the Met ...