Astronomers were able to determine this using “gravitational microlensing” – when the gravity of a foreground object warps the light coming from an object behind it.

The light from a background star was slightly deflected by the gravitational warping of space by LAWD 37.
#Hubble

“Bob and Doug represent the best of our nation.” —@VP Kamala Harris

Congratulations to former @NASA_Astronauts Bob Behnken and Doug Hurley, recipients of the Congressional Space Medal of Honor, presented to them for their bravery in NASA’s @SpaceX Demo-2 mission.
#NASA

Ivory by Tapbots is launching today.

This app marks the beginning of a new era for Mastodon clients on Apple platforms. It raises the bar in this category, but there’s still work to be done.

I reviewed Tweetbot 1.0 on MacStories in 2011; 12 years later, here is my review of Ivory 1.0:

Ivory for Mastodon Review: Tapbots Reborn https://www.macstories.net/reviews/ivory-for-mastodon-review-tapbots-reborn/