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Astronomy
3 天
You’re almost certainly not being visited by aliens
Anyone tempted to ascribe the nighttime sightings of aircraft to alien intelligence ought to be dissuaded by the vast scale ...
Astronomy
3 天
Smallest main-belt asteroids ever detected found hiding in JWST data
With the James Webb Space Telescope and updated processing techniques, researchers have detected asteroids just tens of ...
Astronomy
3 天
How do spacecraft avoid collisions in the asteroid belt?
The main belt located between the orbits of Mars and Jupiter is so sparsely populated that spacecraft pass through as though it were empty.
Astronomy
4 天
Earth’s gravity gave the Moon an early facelift
Heat from tidal forces remelted the Moon’s crust, says new reesarch, which may explain why the Moon is older than some ...
Astronomy
6 天
‘Blue straggler’ likely born from a collision of stars
A strange star has revealed to astronomers a mysterious past — one that involves the merger of two ancient suns.
Astronomy
2 天
FAA approves SpaceX for more Starship test missions
The regulator issued a modified launch and reentry license that allows launching multiple flights under the vehicle’s Flight ...
Astronomy
5 天
Want to find a black hole? Pick up a rock
Quickly moving primordial black holes might leave tiny holes in regular matter as they tunnel through, leaving traces we ...
Astronomy
3 天
Mars Express captures the beauty of a martian frostscape
Mars Express spotted this scene using its High Resolution Stereo Camera (HRSC) during its 23,324th orbit of the Red Planet. This image taken in June 2022 shows the land slowly acclimating to the ...
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