Scientist Avi Loeb has accused NASA of withholding critical information about 3I/ATLAS — the Manhattan-sized interstellar comet which he’s postulated could have extraterrestrial origins. The Harvard astrophysicist made these allegations during a recent appearance on “ The Joe Rogan Experience .”

Blue Origin has test fired its New Glenn rocket engine as it makes final preparations for the launch of NASA’s ESCAPADE mission involving twin Mars orbiters. The static test fire of the heavy-lift rocket, captured by NASASpaceflight and shared below, lasted around 40 seconds and appeared to proceed without a hitch.

The dust-up over the lunar lander could pit Elon Musk against his billionaire rival Jeff Bezos. And it has already sparked a war of words between Musk and Nasa’s acting chief, Sean Duffy, which exposes fault lines over the direction and leadership of the US space agency.

The hold-down firing of the first stage engines was the final major test of the New Glenn rocket before launch day. Blue Origin previously test-fired the rocket’s second-stage engines. Officials have not announced a target launch date, but sources tell Ars the rocket could be ready for liftoff as soon as November 9.

The compact, 100 foot (30 meter) plane launched from the Lockheed Martin Skunk Works facility in Palmdale, about 60 miles (100 km) north of Los Angeles, coasted over the desert and landed near NASA’s Armstrong Flight Research Center about 40 miles (64 km) away.

NASA will announce the first class of astronauts in four years who could one day be eligible for missions to the moon and Mars.

The new selection of NASA astronauts will spend two years in training before becoming eligible for flight assignments.

Most people would think that Earth only has one moon, but in reality it's had multiple moons on more than one time. And right now is one of those times.