Donald Trump’s second term comes with the specter of the world’s richest man serving as his political enforcer.

President-elect Donald Trump has tapped a tech billionaire who performed the first private spacewalk to lead NASA.

President-elect Donald Trump is bringing Peter Navarro back to the White House for his second administration.

A billionaire spacewalker is back on Earth.

A tech billionaire has performed the first private spacewalk hundreds of miles above Earth.

Paying passengers have lined up to rocket to space to experience a few minutes of weightlessness.

A billionaire has rocketed back into orbit, aiming to perform the first private spacewalk.

A SpaceX rocket has failed for the first time in nearly a decade, leaving the company's internet satellites in the wrong orbit.

New research shows space tourists experience some of the same body changes as astronauts who spend months in orbit.

Two space telescopes have captured this week's asteroid strike, the first planetary defense test of its kind.

The youngest American to journey into space, Hayley Arceneaux, has a simple title for her memoir.

The billionaire who flew on his own SpaceX flight last year is headed back up, aiming for an even higher orbit and the chance to take part in a spacewalk.

The Giving Pledge announced Tuesday that 14 more billionaires, including the CEOs of DoorDash and Pinterest, had promised in 2021 to donate more than half their fortunes, bringing the total to 231 philanthropists from 28 countries.

U.N. Secretary-General Antonio Guterres is a no-go for launching billionaires into space.

A trailblazing tourist trip to orbit has ended safely with a splashdown in the Atlantic.

Tom Cruise is getting a sneak preview of what it's like to circle Earth in a SpaceX capsule.

In this photo provided by SpaceX, Jared Isaacman, from left to right, Hayley Arceneaux, Sian Proctor and Chris Sembroski pose for a photo, Monday, March 29, 2021, from the SpaceX launch tower at NASAs Kennedy Space Center at Cape Canaveral, Fla. (SpaceX via AP)(SpaceX)

Isaacman also revealed some details about his Inspiration4 mission, as the four gathered Tuesday at NASA’s Kennedy Space Center. Their SpaceX Dragon capsule — currently parked at the International Space Station for NASA — will launch no earlier than mid-September, aiming for an altitude of 335 miles (540 kilometers). That’s 75 miles (120 kilometers) higher than the International Space Station and on a level with the Hubble Space Telescope. AdThe capsule will be outfitted with a domed window in place of the usual space station docking mechanism for their trip. The St. Jude physician assistant was treated there as a child for bone cancer.

(Mike Brown/American Lebanese Syrian Associated Charities, St. Jude Childrens Research Hospital via AP)CAPE CANAVERAL, Fla. – After beating bone cancer, Hayley Arceneaux figures rocketing into orbit on SpaceX’s first private flight should be a piece of cosmic cake. When she was 10, she had surgery at St. Jude to replace her knee and get a titanium rod in her left thigh bone. Isaacman announced his space mission Feb. 1, pledging to raise $200 million for St. Jude, half of that his own contribution. As the flight’s self-appointed commander, he offered one of the four SpaceX Dragon capsule seats to St. Jude. One will be a sweepstakes winner; anyone donating to St. Jude this month is eligible.

Isaacman announced Monday, Feb. 1, 2021, that he aims to use the trip to raise more than $200 million for St. Jude. (St. Jude Childrens Research Hospital via AP)NEW YORK – SpaceX’s first all-civilian space flight set for late this year will provide an out-of-this-world fundraising opportunity for St. Jude Children’s Research Hospital, which says it expects to generate $200 million for cancer research and other causes. St. Jude, which specializes in researching and treating pediatric diseases, also stands to increase awareness of its mission. The fourth seat will go to a frontline healthcare worker at St. Jude’s hospital to inspire hope about its mission. Inspiration4 should live up to its name for children at St. Jude’s hospital, Shadyac said.

A female health care worker for St. Jude already has been selected for the mission. Anyone donating to St. Jude in February will be entered into a random drawing for seat No. SpaceX founder and chief executive Elon Musk expects the flight to last two to four days. Isaacman’s $100 million commitment to St. Jude in Memphis, Tennessee, is the largest ever by a single individual and one of the largest overall. While Isaacman and wife, Monica, managed to keep his space trip hush-hush over the months, their daughters couldn’t.