Snapshots of a cross-sectional slice of a head-on collision between a non-rotating Venus and a 0.1 M⊕ impactor at 10 km s−1 . shown at multiple time steps. Initial energy
Snapshots of a cross-sectional slice of a head-on collision between a non-rotating Venus and a 0.1 M⊕ impactor at 10 km s−1 . shown at multiple time steps. Initial energy
Ground-based light curves from LCOGT, KeplerCam, and MUSCAT2. The colored data points correspond to the binned data at 5 minute cadence. The solid black line is the median model from
Dependence of (a) surface temperature, (b) planetary albedo (the Bond albedo measured at the top of the atmosphere), (c) H2O mixing ratio in the stratosphere, and (d) H2O column density
Stars die and vanish from sight all the time, but astronomers were puzzled when one that had been stable for more than a decade almost disappeared for eight months.
Expedition 73 activities continued this week with bone loss and cardio studies, as well as a first-of-its-type reboost operation for the orbital complex. Orbital observation Students from the Computer School
A SpaceX Falcon 9 rocket streaks away from Launch Complex 39A at NASA’s Kennedy Space Center to begin the USSF-36 mission with the X-37B spaceplane onboard. More than eight minutes
Titans Space Industries, a commercial space company, selected a new cohort of astronaut candidates this spring – and among them is NASA citizen scientist, Benedetta Facini. She has participated in
Chinese astronauts added more debris shielding to the Tiangong space station during a 6.5-hour spacewalk on Friday (Aug. 15), according to state media. Two astronauts from the three-person Shenzhou 20
Abundances of O3 for both high CH4 models from this study and high N2O models from Kozakis et al. (2025) normalized to the amount of O3 with modern amounts of
Carbonate-silicate weathering feedback behavior throughout the habitable zone (HZ). (a) Reproduction of O. R. Lehmer et al. (2020) results showing stable, Earth-like climates generated by their habitable zone weathering model.