Jonathan McDowell

251 Followers
49 Following
102 Posts
I'm an astronomer at the Harvard-Smithsonian Center for Astrophysics, working on Chandra and quasars, and commenting on space launches and space activities.
This is my old mastodon account from 2017.
I am now (2022) [email protected]
And less cheerfully (unless you are a North Korean missile engineer) the Hwasong-12 missile made its first flight yesterday. It was launched from Kusong to an apogee of 2111 km and splashed down in the Sea of Japan.
In other recent space news, India's South Asia Satellite, launched on May 5, has reached synchronous orbit and is drifting over the Indian Ocean towards its station. The sat provides comms capability for Afghanistan, Bangladesh, Bhutan, Maldives, Nepal and Sri Lanka.

Some really nice images of Saturn's rings coming in from the Cassini probe this evening

https://mastodon.cloud/media/6sNT8JSXN8Kq-EZG-AI

OK that's odd. I went away for a couple of weeks and now the 'home'
panel gives me 'you arent' following anyone yet' except that I checked
I'm still following 70 people. What gives?
Closest approaches to the Saturnian rings by space probes https://mastodon.cloud/media/O5kU922KbUtV3ME5kCU - note how they find the gaps either side of the dense rings (A-F). Black = planet itself
NASA's Cassini probe passed between Saturn's rings and cloudtops this morning. 3 hours till we hear from it - if it survived OK
At the March for Science in Amsterdam
https://mastodon.social/media/kGEhiExB7MzD7VDQoa4
Sind dann auch mal auf dem March for Science in #heidelberg #marchforscience