Rhea

 On this date in 1672, Giovanni Cassini discovered Saturn's moon Rhea.

Rhea is the second largest of Saturn's many moons.

UFO

 The Pentagon's new UFO office has received several hundred reports from military personnel in its first six months.

According to the office, none of the incidents suggests alien activity.

ISS

 ISS had to dodge space debris yesterday.

A spacewalk also had to be canceled.

Water Worlds

 Astronomers have found two large exoplanets orbiting the same star 218 light years away, and both seem to be water worlds.

They could be larger versions of Europa.

Mammals

 A new study suggests mammals were already on the ascent before the big dinosaurs went extinct.

The killer asteroid simply opened the field.

Soyuz

 The Soyuz attached to ISS has suffered a massive leak, likely making it unusable.

If that's correct, in an emergency the entire ISS crew could not currently be evacuated.

Space Force

 The U. S. Space Force is establishing its first oversea base.

It's in South Korea.

Fusion

 Physicists have developed a nuclear fusion process that produces a net energy gain.  A commercial plant could be up within a decade/

Clean fusion power would end the climate matter.  It could also power starships.

Hypersonic

 The USAF has successfully tested a hypersonic missile.

It reached speeds upwards of Mach 5.

Artemis

 Artemis 1 successfully splashed down in the Pacific yesterday.

That paves the way for a crewed mission.

Artemis 1

 Artemis 1's Orion is set to come home Sunday.

It will be recovered by the U. S. Navy.

SETI

 Breakthrough Listen is funding a SETI project in South Africa.'

It will scan the MilkyWay/

Ingenuity

 Ingenuity has flown over Mars 35 times,

The highest it has flown is 46 feet.

Apollo 17

 Today  is the fiftieth anniversary of the launch of Apollo 17.

We haven't been back to the Moon since.

Venus

 NASA's aircraft-based SOFIA observatory  recently searched for life in the clouds of Venus.

It found none.

Megatsunami

 A new study finds a large body may have smacked early Mars and created a megatsunami.

It would  have  been while Mars had an ocean.  The wave could have been 800 feet high.

UFO

 A Penn State historian has developed an online course on UFOs.

The course looks at the subject from social, historical. and political perspectives.

Physics

 Physicists have developed a black hole simulation that could lead to uniting quantum physics and general relativity.

That would  be huge.