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NASA astronaut celebrates 70th birthday with return to Earth
By Tessa Flemming

NASA astronaut Don Pettit, who spent 220 days in the ISS and orbited the Earth 3,520 times, landed back on Earth in Kazakhstan on Saturday local time.

abc.net.au/news/2025-04-20/nas

ABC News · NASA astronaut Don Pettit celebrates 70th birthday with return to EarthBy Tessa Flemming

NASA astronaut celebrates 70th birthday with return to Earth
By Tessa Flemming

NASA astronaut Don Pettit, who spent 220 days in the ISS and orbited the Earth 3,520 times, landed back on Earth in Kazakhstan on Saturday local time.

abc.net.au/news/2025-04-20/nas

ABC News · NASA astronaut Don Pettit celebrates 70th birthday with return to EarthBy Tessa Flemming
Continued thread

As the #spacecraft approaches Mars 🔴, it will need to perform a capture burn 🔥 to slow down and be captured by Mars' gravity. This requires a delta-v of about 0.7 to 1.3 km/s to enter Mars' orbit or to land on the planet's surface. #Starship 🚀 will enter #Mars’ atmosphere at 7.7 km/sec and decelerate #aerodynamically uc.edu/content/dam/refresh/con

🚀 Oh no, #Gaia, the European #Space Agency's space gadget, is going to bed in 2025! 🛌 After years of looking at stars, it's finally taking a nap—probably tired of being ignored in favor of #Elon Musk's latest Twitter tantrum. 🌌 Who knew even spacecrafts need a #cosmic #retirement plan? 🤖
cosmos.esa.int/web/gaia/news #Spacecraft #ESA #Musk #Exploration #News #HackerNews #ngated

GaiaGaia Mission News - Gaia - CosmosUpdates on the ESA Gaia mission

A couple of abstracts relevant to the space environment from the upcoming European Geosciences Union (Vienna, 27 April–2 May 2025):

“Defining the environmental impacts of satellite megaconstellation missions in a rapidly growing space sector” meetingorganizer.copernicus.or

“Survey of the estimated mass of ablated material and intact debris from ‘end-of-life’ LEO spacecraft entering the atmosphere” meetingorganizer.copernicus.or

meetingorganizer.copernicus.orgAbstract EGU25-17301