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Category: space travel – Page 39

Astronauts 3D-print first metal part while on ISS

Related: Future moon astronauts may 3D-print their supplies using lunar minerals

“With the printing of the first metal 3D shape in space, ESA Exploration teams have achieved a significant milestone in establishing in-orbit manufacturing capabilities. This accomplishment, made possible by an international and multidisciplinary team, paves the way for long-distance and long-duration missions where creating spare parts, construction components, and tools on demand will be essential,” said Daniel Neuenschwander, director of Human and Robotic Exploration at ESA, in a statement.

This groundbreaking technology continues to expand its applications on Earth, revolutionizing fields such as medicine, fashion, art, construction, food production and manufacturing. In space, as long-duration missions to the moon and potentially Mars take shape, astronauts will need a means of independently repairing or creating tools or parts for machinery or structures that would be difficult to carry onboard a spacecraft, which have limited capacity.

Scientists show time travel could be ‘mathematically possible’

Australian physicists resolve time travel paradox, showing it could be possible according to einstein’s theory.

Australian physicists have demonstrated that time travel could be theoretically possible by resolving the classic grandfather paradox. By aligning Einstein’s theory of general relativity with classical dynamics, researchers at the University of Queensland showed that time travel scenarios, such as altering past events, can coexist without resulting in logical inconsistencies. They used a model involving the coronavirus pandemic to illustrate how events would adjust themselves to avoid paradoxes. This research suggests that time travel, while complex, does not inherently create contradictions and could be feasible according to current mathematical models.

After reading the article, a Reddit user named Harry gained more than 524 upvotes with this comment: Isn’t the problem with time travel that it is also space travel? The earth isn’t in the same spot now as it was when you first started reading my comment, the earth travels very fast in space so wouldn’t you also have to find out where in space the earth was in 1950 (chose random date) in order to physically travel there? And how could we know where in physical space the earth was in 1950?

Watch live: Polaris Dawn astronauts make first commercial spacewalk from SpaceX Dragon spaceship

Live coverage as the Polaris Dawn crew attempt the world’s first commercial spacewalk from the SpaceX Dragon capsule Resilience. The spacewalk is scheduled to begin at 5:58 a.m. EDT (0858 UTC) but the time is subject to change.

Aboard Resilience are mission commander, Jared Isaacman, retired U.S. Air Force pilot, Scott “Kidd” Poteet, and two SpaceX Lead Space Operations Engineers, Anna Menon and Sarah Gillis. Isaacman and Gillis will take turns emerging from the Dragon’s hatch while Poteet and Menon remain inside. The entire spacecraft will be depressurised for the Extravehicular Activity (EVA).

In addition to performing the spacewalk the crew have already flown further from Earth than anyone since the Apollo era.

Commentary will be provided by Will Robinson-Smith.

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Inside Valkyrie, NASA’s humanoid robot paving way to the moon and Mars

NASA’s Valkyrie robot is an intimidating figure. It is currently being put through its paces at the Karda laboratory in Australia so researchers can work out what it would take to get a humanoid robot onto offshore energy facilities or into space. New Scientist‘s James Woodford took the controls to see what the $2 million-plus device is capable of.

Video shows a SpaceX rocket launch 4-member crew for daring Polaris Dawn mission

The Polaris Dawn crew were finally able to embark early Tuesday on the thrice-delayed spaceflight, where by Thursday they should attempt to become the first nongovernment astronauts to conduct a spacewalk. In the predawn hours, billionaire entrepreneur Jared Isaacman and his crew boarded a SpaceX Dragon capsule perched atop a Falcon 9 rocket, which lifted off at 5:23 a.m. EDT from NASA’s Kennedy Space Center in Florida.

Ahead for the private astronauts – who spent three weeks in quarantine awaiting the launch – are five days in orbit testing out SpaceX technology that could be crucial for future deep-space exploration.

If you missed the launch, here’s how to rewatch SpaceX’s Polaris Dawn mission get underway.

World’s first aerospike aircraft to fly this month after crash setback

The world’s first flight test for an aerospike rocket engine ended in disaster, but Polaris Aerospace is back on track, preparing to fly two new prototypes for its MIRA supersonic/hypersonic aerospike spaceplane platform within weeks.

Immediately after the MIRA I crashed upon takeoff, Polaris Spaceplanes stated it would be going forward with the MIRA II and III. True to word, Polaris has unveiled two new, yet-to-be-fully completed airframes in a recent LinkedIn post.

The MIRA II and III are identical 16.4 ft (5 m) airframes with 30% more wing area than their predecessor, the MIRA I. Polaris opted to create two identical airframes in order to speed up flight testing as well as have a “reserve” aircraft if need be. “In addition,” writes the team, “the design has been greatly improved compared to MIRA with incorporating all the lessons learnt so far.”

SpaceX: The Biden-Harris administration is blocking the next flight of Starship which is critical for accomplishing the promised Moon landing and later Mars landing

The Biden-Harris administration is blocking the next flight of Starship which is critical for accomplishing the promised Moon landing and later Mars landing. SpaceX has prepared a lengthy document where they detail their endless attempts to be allowed to fly again.

SpaceX designs, manufactures and launches advanced rockets and spacecraft.

SpaceX Polaris Dawn, piloted by New Hampshire man, officially in orbit after successful launch

The historic Polaris Dawn mission, which is being piloted by a New Hampshire man, launched at 5:23 a.m. Tuesday after an initial launch for 3:38 a.m. was delayed due to unfavorable weather conditions.

The mission pilot is Scott Poteet, who is from Stratham. He is joined by shuttle commander Jared Isaacman and mission specialists and SpaceX engineers Sarah Gillis and Anna Menon.