Earth's Core

 New research finds the Earth's core is about a billion years old.

It's also 1,500 miles across.

Trump

 President Trump, in his speech accepting the Republican presidential nomination, once again pledged Americans would land on Mars.

That is currently scheduled for sometime in the 2030s.

Galilean Gravity

 A new study argues the Galilean moons of Jupiter might have a bigger gravitational effect combined on each other than Jupiter does.

It's due to orbital resonance among them.

Carr

 Astronaut Jerry Carr, commander of the final Skylab crew, has died.

He was 88.

Meteorite

 A meteorite that landed in Costa Rica last year seems to be older than our solar system and contain the building blocks of life.

It's more evidence that life could be widespread in the galaxy.

Supernova

 A new study suggests the mass extinction on Earth 360 million years ago was caused by a nearby supernova.

About 75% of the species were lost.

Oumuamua

 Scientists are still arguing about what the interstellar object Oumuamua actually was.

It still could have been alien technology.

UFOs

 Tucker Carlson says his contacts in the Pentagon tell him the UFOs the Pentagon is studying are not Russian or Chinese.

That leaves few options.

Lunar Pole

 Some scientists are warning that human activity at the lunar south pole could compromise the scientific value of the area.

NASA is planning to land humans there in 2024.

Local Neighborhood

Interested amateurs have found 95 nearby brown dwarfs under a NASA program.

The discoveries will help fill out our concept of the local neighborhood.

South Atlantic Anomaly

 NASA is studying the South Atlantic Anomaly, which is a weakness in Earth's magnetic field.

It poses no threat to life on Earth.

Lava Tubes

 A new paper suggests citing settlements on the Moon and Mars in huge lava tubes to shield people from radiation and extreme temperatures.

Space advocates and science fiction authors have been making that case for years.

Phobos

On this date in 1877, astronomer Asaph Hall discovered the Martian moon Phobos from the U. S. Naval Observatory in Washington,  D. C.

That's now the Vice President's official residence.

Pentagon

 The Pentagon is creating a task force to study UAPs, aka UFOs/

The task force will focus on national security issues, and is led by the Navy.

MUFON

 Last month, 769 UFO reports worldwide went to MUFON.

Of those, 612 were from the U. S.  

TESS

 After two years in operation, NASA's planet hunting probe TESS has found 66 confirmed worlds and nearly 2,100 possibles.

TESS continues to search on an extended mission.

Wormholes

 New research suggests we could detect a black hole falling into a wormhole by studying gravitational waves.

That assumes wormholes exist.

Ceres

 Research based on the Dawn mission to Ceres is coming out.

It paints the dwarf planet as a world that may be geologically active to this day.

FRB

 In April, astronomers found the first fast radio burst within our galaxy.

The FRB was connected to a magnetar 30,000 light years away.

Ganymede

 Scientists think they have found a huge impact scar on Jupiter's largest moon, Ganymede, a world larger than Mercury.

They think Ganymede was struck by an asteroid 30 to 90 miles across.

Pluto Glaciers

New research finds the methane and nitrogen glaciers on Pluto grow in warmer periods.

 Yes, there are slightly warmer periods on Pluto.

Blanets

New research suggests supermassive black holes could have worlds orbiting them.

Maybe we'll call them blanets.

VG

Virgin Galactic has announced commercial flights won't commence until at least 2021.

It cited the pandemic as slowing progress.

Mars

New research suggests many valleys on Mars were cut by glaciers, not rivers.

That would imply Mars was colder in the past than many thought.

Splashdown

Demo-2 safely splashed down in the Gulf of Mexico yesterday.

It was the first splashdown of an American spaceship since 1975.

Demo-2

The Demo-2 Dragon is scheduled to undock from ISS later today.

Splashdown is set for tomorrow.