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Copernical Team

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NASA moon rocket back in hangar, launch unlikely until Nov.
The NASA moon rocket slated for the Artemis mission to the moon rolls back to the Vehicle Assembly Building at the Kennedy Space Center Tuesday, Sept. 27, 2022, in Cape Canaveral, Fla. The launch of the rocket was postponed due to the impending arrival of Hurricane Ian. Credit: AP Photo/John Raoux

NASA's moon rocket is back on the pad for another launch attempt, following more repairs.

The 322-foot (98-meter) rocket departed its hangar in the middle of the night and completed the 4-mile (6.4-kilometer) trip shortly after sunrise Friday.

Friday, 04 November 2022 15:08

How do you keep a solar sail stable?

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How do you keep a solar sail stable?
Graphical abstract. Credit: Space: Science and Technology (2022). DOI: 10.34133/2022/9831270

Solar sailing seems like a simple concept—instead of being pushed along by the wind, as in a typical sailing ship, a spacecraft can use highly reflective said to be pushed along simply by sunlight. But as with almost all engineering challenges, that technique is much easier said than done. Sunlight can head up one side of a sail more than another, causing the ship to rotate unexpectedly. Other unforeseen situations could arise that can also have catastrophic consequences for any mission using this propulsion technology.

Luckily, there is a way to account for those situations, though it involves a lot of math. Control theory is common in system design, and now researchers at Beihang University have devised a control scheme that they think could help minimize the risk to solar sails.

Control systems are relatively easy to understand in concept. A system has a series of inputs; in the case of a solar sail, those inputs might be the solar force pushing on it from the sun and maybe the gravity of any nearby object.

Friday, 04 November 2022 13:30

Week in images: 31 October - 4 November 2022

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Nushagak Bay, Alaska

Week in images: 31 October - 4 November 2022

Discover our week through the lens

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Paris (ESA) Nov 03, 2022
Biomass, the European Space Agency's (ESA) forest measuring satellite has left the Airbus Defence and Space site in Stevenage and is on its way to Toulouse for final testing ahead of launch. The comprehensive environmental test programme for the spacecraft will include thermal vacuum tests, mechanical vibration, acoustic and electromagnetic compatibility testing to replicate the conditions
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Boca Raton FL (SPX) Nov 01, 2022
Terran Orbital Corporation (NYSE: LLAP), a global leader in satellite-based solutions primarily serving the United States and Allied aerospace and defense industries, announced that it has entered into a note and warrant purchase agreement pursuant to which Terran Orbital received a $100 million investment from Lockheed Martin (NYSE: LMT) in exchange for convertible notes and warrants issued by
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Joint Base Andrews MD (SPX) Nov 03, 2022
Pledging to build on the Space Force's achievements while also infusing the nascent service with new approaches, Gen. B. Chance Saltzman was officially installed Nov. 2 as Chief of Space Operations, the service's highest-ranking military post and only the second person to hold the position in the Space Force's history. In remarks during a solemn "Change of Responsibility" ceremony in which
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Iowa City IA (SPX) Nov 04, 2022
Early crust on Mars may be more complex than previously thought-and it may even be similar to our own planet's original crust. The Martian surface is uniformly basaltic, a product of billions of years of volcanism and flowing lava on the surface that eventually cooled. Because Mars did not undergo full-scale surface remodeling like the shifting of continents on Earth, scientists had though
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Beijing (XNA) Nov 03, 2022
Mutated rice seeds brought from space may provide new species on Earth and result in higher yields than their terrestrial counterparts. At a scientific research demonstration base in Wuhan, Hubei province, workers from Hubei Jinguang Agricultural Technology Co recently completed harvesting space rice from 20 hectares of paddies where they had planted seeds from China's Shenzhou-12 manned space m
Friday, 04 November 2022 09:29

Can cosmic inflation be ruled out

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Cambridge UK (SPX) Nov 04, 2022
Astrophysicists say that cosmic inflation - a point in the Universe's infancy when space-time expanded exponentially, and what physicists really refer to when they talk about the 'Big Bang' - can in principle be ruled out in an assumption-free way. The astrophysicists, from the University of Cambridge, the University of Trento, and Harvard University, say that there is a clear, unambiguous
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Washington DC (SPX) Nov 04, 2022
For the second time in 2022, stargazers will have the opportunity to view a total lunar eclipse on Nov. 8. At least a portion of the phenomenon will be visible throughout eastern Asia, Australia, the Pacific, and North America. The previous total lunar eclipse happened in May. According to Alphonse Sterling, astrophysicist from NASA's Marshall Space Flight Center in Huntsville, Alabama, to
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