esa

Recently, we got one of our best views yet of the tiny moon when a European mission named Hera, en route to the asteroid Didymos, flew through the Martian system for a gravity assist. During this transit, the spacecraft came within just 300 km of Deimos.

In a 28 February POLSA update, the agency confirmed that the information regarding the uncontrolled re-entry of the Falcon 9 second stage had been sent to the wrong email addresses at the Ministry of National Defence....

Launched on 19 December 2013, Gaia’s fuel tank is now approaching empty – it uses about a dozen grams of cold gas per day to keep it spinning with pinpoint precision. But this is far from the end of the mission.

In brief...

I think they are missing a “still” in the title…

Fingers crossed for our new European launcher 🤞

The European Union has reached an agreement with the United States that will allow for the launch of four Galileo navigation satellites on SpaceX’s Falcon 9 rocket....

Seems like a good initiative. Rockets are one of the few forms of transport which are currently impossible to electrify. Though hydrogen is not the perfect rocket propellant, it has the advantage that it produces no carbon dioxide when combusted. Current hydrogen production still produces carbon dioxide though, so it is nice to...