European Space Agency's exoplanet mission Cheops (Characterising Exoplanet Satellite) has successfully launched
6
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Starliner test flight passes launch readiness review
4 votes -
NASA's Solar Dynamics Observatory has observed a new type of magnetic explosion on the Sun
6 votes -
Norway gives Sámi names to distant star and planet as part of the 100th anniversary of the International Astronomical Union
6 votes -
Why is the James-Webb space telescope taking so long?
7 votes -
The difference between aerodynamic and ballistic reentry
7 votes -
NASA approves December 20 Boeing Starliner test flight onboard an Atlas V to International Space Station
10 votes -
Are we ready for first contact?
5 votes -
NASA's OSIRIS-Rex team has officially selected the site on asteroid Bennu to collect a sample for return to Earth
8 votes -
What makes NASA's Artemis suit the best space suit yet?
3 votes -
A look at the differences between the Curiosity rover and Mars 2020, which will start exploring Mars' Jezero Crater for signs of life in 2021
12 votes -
Aerothermodynamics, or how scientists learned to survive re-entry
7 votes -
Falcon 9 cargo mission for NASA demonstrated long-duration coast required by US Air Force
5 votes -
SpaceX working on fix for Starlink satellites so they don’t disrupt astronomy
12 votes -
"Electron made it through wall! Solid telemetry all the way to sea level with a healthy stage. A massive step for recovery!!"
@peter_j_beck: Electron made it through wall! Solid telemetry all the way to sea level with a healthy stage. A massive step for recovery!!
12 votes -
New image of interstellar comet 2l/Borisov offers a close-up view and comparison to the size of Earth
5 votes -
Vikram lander crash site located using Lunar Reconnaissance Orbiter Camera images
5 votes -
Europe gives space programs a big boost
8 votes -
How a meteorite ruined an Alabama woman's afternoon sixty-five years ago
9 votes -
A falling rocket booster just completely flattened a building in China
14 votes -
Two months after failed moon landing, India admits Chandrayaan-2's Vikram lander crashed
4 votes -
That Starlink problem astronomers were worried about is totally happening
19 votes -
SpaceX Starship Mk. 1 fails during cryogenic loading test
15 votes -
1,000km cable to the stars - The Skyhook
15 votes -
SpaceX's Crew Dragon abort system aces ground test ahead of major launch
10 votes -
SpaceX has successfully launched another sixty Starlink satellites
14 votes -
Starlink is a very big deal
10 votes -
Space-grade CPUs: How do you send more computing power into space?
8 votes -
Neutron stars – The most extreme things that are not black holes
10 votes -
The July outage of the Galileo Global Navigation Satellite System - What went wrong and the problems behind it
8 votes -
SpaceX and Boeing still need a parachute that always works
6 votes -
Next generation electron booster on the pad for Rocket Lab’s tenth mission
5 votes -
Voyager 2 illuminates the boundary of interstellar space
9 votes -
Here's what we know the shadowy X-37B was up to during its record 780 days in space
7 votes -
The world’s largest 3D metal printer is churning out rockets
7 votes -
The self-hammering probe on NASA’s Mars lander can’t seem to actually dig into the ground
10 votes -
How Flagstaff, Arizona, switched to LEDs without giving astronomers a headache
7 votes -
Tunnelling mole instrument on Mars InSight lander resumes movement into Martian surface
7 votes -
Are aerospikes better than bell nozzles?
7 votes -
Earth and sun
5 votes -
Hubble observes comet 2I/Borisov, the first confirmed interstellar comet
8 votes -
Japanese satellite re-enters atmosphere after experiments in ultra-low orbit
7 votes -
xEMU - A next generation spacesuit for the Artemis generation of astronauts
5 votes -
With more rocket launches comes more pollution cleanup
8 votes -
First spacewalker Alexei Leonov dies at 85
6 votes -
NASA aims for first manned SpaceX commercial crew mission in first-quarter 2020
6 votes -
Twenty new moons found orbiting Saturn, making it the planet with the most known moons
10 votes -
Construction of Starship 39A launch and landing facility picking up the pace
8 votes -
Jason-2 oceanography satellite ends eleven-year mission
4 votes -
Hypothetics: let's say it takes 1/100 of the current fuel to take a spacecraft out of Earth's atmosphere. What happens?
This is obviously a thought-experiment, but maybe an interesting one. Let's say we get a super-efficient, eco-friendly alternative fuel that can do whatever rocket fuel does now with 1/100 of the...
This is obviously a thought-experiment, but maybe an interesting one. Let's say we get a super-efficient, eco-friendly alternative fuel that can do whatever rocket fuel does now with 1/100 of the cost, 1/100 of volume and 100% more efficiency. What does it change in the short term?
10 votes