esa
Watch a Satellite Reaction Wheel Melt in a Simulated Orbital Re-Entry
Most satellites share the same fate at the end of their lives. Their orbits decay, and eventually, they plunge through…
Phew, De-Icing Euclid’s Instruments Worked. It’s Seeing Better Now
From its vantage point at the Sun-Earth L2 point, the ESA's Euclid spacecraft is measuring the redshift of galaxies with…
Ice is Starting to Cloud Euclid's Optics
On July 1st, 2023, the European Space Agency (ESA) launched the Euclid Observatory, a mission that will spend the next…
An Astronaut Controls a Robotic Dog From Orbit
Swedish astronaut Marcus Wandt took control of a series of robots in Germany while on board the International Space Station,…
The Ice Sheet on Mars is Even Thicker Than Previously Believed
Maybe Mars isn’t as dry as we thought. ESA's Mars Express has revealed new details about a region near Mars’…
This Alien Landscape is Actually a Microscopic View of an Atomic Clock
Navigation satellites couldn't accomplish anything without extremely accurate clocks. But a regular clock won't do. Only atomic clocks are accurate…
ESA Gives Us a Glimpse of its Future Space Exploration Plans with a Cool New Video
The European Space Agency (ESA) has made incredible contributions to space exploration and space-based science. Last year, the agency launched…
Cool New Mission Trailer for Rosalind Franklin Rover
ESA's Rosalind Franklin Mars rover has been delayed twice due to problems with its parachute deployment and Russia's invasion of…
A Planetary System With Six Sub-Neptunes Locked in Perfect Resonance
Researchers using TESS and Cheops data found a system with six sub-Neptune-sized planets, all orbiting in direct resonance with each…
After Stalling Out for 40 Years, the Largest Iceberg in the World is on the Move
In 1986, a gigantic iceberg separated from the Fichner-Ronne ice shelf in West Antarctica. It was so big that it…