It was the 13th test overall of Starship. The success is a boon to NASA’s moon plans and SpaceX’s hopes to deploy a million data centers in orbit.

Charles Ross spent 50 years building “Star Axis,” a naked-eye observatory in New Mexico. Now his masterwork is ready. How to share it with a changed world?

It’s the first potentially habitable world known to host an atmosphere, making it a lead contender in the search for life beyond our solar system.

The 33 engines of the rocket’s booster stage had begun to ignite during Thursday’s launch attempt, but were then shut down. SpaceX will try again on another day.

The first tweets from the public appeared on July 15, 2006, several months after a soft launch. It was rebranded as X after being acquired by Elon Musk.

A New Jersey couple helped scientists uncover the makeup of an unusual asteroid after it fell into their bedroom.

It’s the first time a sugar molecule has been detected in interstellar space. The discovery provides tantalizing new clues into how life may have arisen on Earth.

Residents fear that the Trump administration’s plans to build a border wall will threaten the region’s spectacular starry skies.

Some shareholders might object, but there is little they could do, legal experts say.

The agency gave a rosy update on Artemis III, a test flight for its goal to return humans to the moon, but experts say the timeline is ambitious.

The agency gave a rosy update on Artemis III, a test flight for its goal to return humans to the moon, but experts say the timeline is ambitious.

NASA’s missions these days rarely feature all-male crews. Jared Isaacman, its administrator, said women play prominent roles throughout the space agency.

Elon Musk said he had initially given SpaceX less than a 10 percent chance of succeeding. His rocket company has come a long way.

Elon Musk said he had initially given SpaceX less than a 10 percent chance of succeeding. His rocket company has come a long way.

In 1995, he and Thomas Bopp spotted, from different states, the same mysterious object in the sky. What turned out to be a comet was named after them: Hale-Bopp.

Elon Musk’s rocket company said it would sell more than 555 million shares at $135 each in its blockbuster initial public offering, which is set to begin trading on Friday.

Elon Musk’s rocket company is spending big and losing money. That has raised questions about whether it can justify its valuation for its blockbuster initial public offering.

The southern lights, also known as the aurora australis, were captured by the NASA astronaut Jessica Meir from the International Space Station on Saturday.

The footage of the southern lights was shared on Sunday by Jessica Meir, commander of NASA’s Crew-12 mission.

Antonio Gracias, an investor who has built a $65 billion stake in the company, exemplifies the economic upside of being Mr. Musk’s ally.