Washington (AP): As President Donald Trump and Elon Musk argued on social media on Thursday, the world's richest man threatened to decommission a space capsule used to take astronauts and supplies to the International Space Station.

After Trump threatened to cut government contracts given to Musk's SpaceX rocket company and his Starlink internet satellite services, Musk responded via X that SpaceX "will begin decommissioning its Dragon spacecraft immediately.”

It's unclear how serious Musk's threat was. But the capsule, developed with the help of government contracts, is an important part of keeping the space station running. NASA also relies heavily on SpaceX for other programs including launching science missions and, later this decade, returning astronauts to the surface of the moon.

The Dragon capsule

SpaceX is the only U.S. company capable right now of transporting crews to and from the space station, using its four-person Dragon capsules.

Boeing's Starliner capsule has flown astronauts only once; last year's test flight went so badly that the two NASA astronauts had to hitch a ride back to Earth via SpaceX in March, more than nine months after launching last June.

Starliner remains grounded as NASA decides whether to go with another test flight with cargo, rather than a crew.

SpaceX also uses a Dragon capsule for its own privately run missions. The next one of those is due to fly next week on a trip chartered by Axiom Space, a Houston company.

Cargo versions of the Dragon capsule are also used to ferry food and other supplies to the orbiting lab.

NASA's other option: Russia

Russia's Soyuz capsules are the only other means of getting crews to the space station right now.

The Soyuz capsules hold three people at a time. For now, each Soyuz launch carries two Russians and one NASA astronaut, and each SpaceX launch has one Russian on board under a barter system. That way, in an emergency requiring a capsule to return, there is always someone from the U.S. and Russian on board.

With its first crew launch for NASA in 2020 — the first orbital flight of a crew by a private company — SpaceX enabled NASA to reduce its reliance on Russia for crew transport. The Russian flights had been costing the US tens of millions of dollars per seat, for years.

NASA has also used Russian spacecraft for cargo, along with US contractor Northrup Grumman.

SpaceX's other government launches

The company has used its rockets to launch several science missions for NASA as well as military equipment.

Last year, SpaceX also won a NASA contract to help bring the space station out of orbit when it is no longer usable.

SpaceX's Starship mega rocket is what NASA has picked to get astronauts from lunar orbit to the surface of the moon, at least for the first two landing missions. Starship made its ninth test flight last week from Texas, but tumbled out of control and broke apart.

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New Delhi (PTI): The Delhi High Court on Wednesday granted time till April 2 to former chief minister Arvind Kejriwal, his deputy Manish Sisodia and 21 others to respond to a plea by the Enforcement Directorate to expunge "unwarranted" remarks made against it by the trial court while discharging them in the liquor policy case.

Justice Swarana Kanta Sharma expressed displeasure over the request for more time by the lawyers appearing for Kejriwal and other accused, and said it would fix a date for final hearing in the matter during the next hearing on April 2.

"I don't know why you are not filing a reply. You should have filed a reply if you think you really needed to file a reply. They are only saying judge should not have written something that he has written."

"By second (of April), you file your reply. Then we will fix a date for final hearing," the judge said.

The Enforcement Directorate's counsel said there was no need to file replies to its petition and that this was an attempt to delay the case.

Additional Solicitor General S V Raju, appearing for ED, contended that the agency's petition has no impact on the accused, as the challenge was limited to the trial court judge's observations against the agency when it discharged Kejriwal, Sisodia and others in the CBI case.

The counsel for one of the accused said a brief reply was necessary and time was needed for it as the discharge order was 600 pages long.

Justice Sharma remarked that the ED's case has nothing to do with all 600 pages.

"Here is a prosecuting agency which has stated that the judge exceeded jurisdiction. I told them even I make such observations. I need to deicide it but you said I need to file a reply. Now you say 600 pages have to be read," the judge observed.

Raju also urged the court to direct that the observations of the trial court would not be relied upon by the accused in related proceedings. "It is a short date. Let them reply," the court responded.

On March 10, the court had asked Kejriwal and others to respond to the ED's plea.

In the petition, ED said the trial court's remarks were wholly extraneous to the CBI's case. It said the ED was neither a party in those proceedings nor afforded any opportunity to be heard.

"If such sweeping, unguided, bald observations are permitted to stand ... grave and irreparable prejudice would be caused to the public at large as well as the petitioner," the ED plea said.

"Therefore, the aforesaid paragraphs which concern the investigation independently conducted by the Enforcement Directorate under the PMLA (Prevention of Money Laundering Act) deserve to be expunged as it amounts to a clear case of judicial overreach...," it added.

On February 27, the trial court discharged Kejriwal, Sisodia and others in the Delhi liquor policy case, pulling up the CBI by saying that its case was wholly unable to survive judicial scrutiny and stood discredited in its entirety.

The trial court ruled that the alleged conspiracy was nothing more than a speculative construct resting on conjecture and surmise, devoid of any admissible evidence.

To compel the accused to face the rigours of a full-fledged criminal trial in the stark absence of any legally admissible material did not serve the ends of justice, it said.

In its order, the trial court highlighted that a procedure permitting prolonged or indefinite incarceration based on a provisional and untested allegation risked "degenerating into a punitive process" and raised a "concern of considerable constitutional significance" where individual liberty was "imperilled" by invoking the Prevention of Money Laundering Act.

It said the issue assumed heightened significance where an accused was arrested for the offence of money laundering and thereafter required to surmount the stringent twin conditions prescribed for the grant of bail, resulting in prolonged incarceration even at the pre-trial stage.

It further said that despite the settled legal position that the offence of money laundering cannot independently subsist and requires the foundational edifice of a legally sustainable predicate offence, the prevailing practice revealed a disturbing inversion.

Underlining that the objective of PMLA was undoubtedly legitimate and compelling, the trial judge mentioned that statutory power, however wide, could not eclipse constitutional safeguards.