Nasa has provoked excitement across the world with the promise that it will reveal a “new discovery about the Moon” in a major announcement.

The space agency gave no details on what the announcement might be, apart from indicating that it “contributes to NASA’s efforts to learn about the Moon in support of deep space exploration” and had been made with Sofia, a converted Boeing 747 that works as a flying observatory.

But clues have begun to emerge about what the announcement could be about to reveal.

Thanks to the tea bag! 😃

Also: Starlinks soar but GPS stays grounded, NASA names first Virgin Galactic flier.

This group is making history.

But not to space.

The Soyuz crew ship undocked from the station at 7:32 p.m. EDT today and will return to Earth at 10:55 p.m. with NASA astronaut Chris Cassidy and cosmonauts Anatoly Ivanishin and Ivan Vagner of Roscosmos. Read more… go.nasa.gov/31su0Lm.

Tune in to “The Virtual Astronaut” talk with Melroy on Oct. 24!

One of the greatest legacies of the International Space Station is the diversity it brought to the astronaut corps, former space shuttle commander Pam Melroy will discuss with a virtual audience Saturday (Oct. 24).

Melroy, a three-time retired spaceflyer and former U.S. Air Force test pilot, will speak about her experiences in space as part of the Virtual Astronaut series, and you can buy tickets here.

We came. We saw. And we tagged. 👉 ☄️ Watch as OSIRISREx briefly touches the surface of asteroid Bennu during NASA’s first asteroid sample collection attempt. More: https://go.nasa.gov/2Hn0Giz # ToBennuAndBack.