OrbitalHub

Wikipedia dicit:

Boeing Crew Flight Test (Boe-CFT) is the first crewed mission of the Boeing Starliner capsule. Launched on 5 June 2024, the mission flew a crew of two NASA astronauts, Barry E. Wilmore and Sunita Williams, from Cape Canaveral Space Force Station to the International Space Station. The crew’s return to Earth, a planned 14 June ground landing in the American Southwest, has been delayed while Boeing works to diagnose various problems with the spacecraft.

The crewed flight test was initially planned to occur in 2017, but various delays pushed back the launch. The spacecraft’s first two uncrewed orbital flight tests of the capsule, Boe-OFT and Boe-OFT 2, took place in 2019 and 2022.

The spacecraft was integrated with the Atlas launch vehicle on 16 April 2024 in preparation for launch. The flight was scheduled for 7 May 2024 but was scrubbed about two hours before liftoff due to an oxygen valve problem on the United Launch Alliance’s (ULA) Atlas V. After the initial scrub, the launch was repeatedly delayed due to a helium leak in the Starliner service module. The second launch attempt was on 1 June, but was scrubbed 3 minutes, 50 seconds before liftoff when the ground launch sequencer computer registered a loss of redundancy due to a faulty power supply. The third launch attempt, on 5 June at 14:52 UTC, was successful.

During the flight to the ISS, additional helium leaks were discovered, though these were still too small to threaten the mission. As Starliner approached the ISS, five reaction control system thrusters failed, likely unrelated to the helium leaks. Resetting and firing the thrusters eventually made four out of five work again, and the Starliner safely docked with the ISS after a delay. The thruster malfunction looks identical to unresolved problems encountered during OFT 2 and will likely have to be fixed before Starliner is certified by NASA.

As of 23 June 2024, the spacecraft remains docked to the ISS. The return to earth flight was originally scheduled for 14 June, but is postponed indefinitely to some time in July, while the problems so far discovered are reviewed for the safety of the return flight.

Video credit: NASA’s Kennedy Space Center

Wikipedia dicit:

The Lunar Terrain Vehicle (LTV) is an unpressurized rover being developed for NASA that astronauts can drive on the Moon while wearing their spacesuits. The development of the LTV is a part of NASA’s Artemis Program, which involves returning astronauts to the Moon, specifically the lunar south pole, by 2026, but the LTV will not fly until Artemis V in 2030 at the earliest. The LTV will be the first crewed lunar rover developed by NASA since the Lunar Roving Vehicle used during the Apollo program.

On February 6, 2020, NASA issued a request, seeking industry feedback on relevant state-of-the-art commercial technologies and acquisition strategies for a new Lunar Terrain Vehicle. NASA also stated in the request that they want the new LTV to draw on recent innovations in electric vehicle energy storage and management, autonomous driving, and extreme environment resistance.”

On August 31, 2021, NASA released another request to private companies for additional input on approaches and solutions for a vehicle to transport Artemis astronauts around the lunar south pole. NASA also asked if American companies are interested in providing the LTV as a commercial service, or as a product NASA would purchase and own.

On November 2, 2022, NASA issued a draft request for proposals (RFP) for the LTV as a service (LTVS). The draft was open for feedback until December 1, with a planned final RFP release date of on or about February 8, 2023, a proposals due date approximately 30 days later, and an anticipated contract award date of on or about July 19.

On January 27, 2023, NASA published an update stating that it anticipated that the LTVS final RFP release will be delayed until no later than May 26. On May 26, NASA released its services request for the Lunar Terrain Vehicle, with proposals due on July 10 and a contract award scheduled for November. On October 30, NASA delayed the award of the contract to March 31, 2024, to allow additional time to evaluate proposals.

On April 3, 2024, NASA announced that Intuitive Machines, Lunar Outpost and Venturi Astrolab are the three companies developing the LTV as part of a 12-month feasibility and demo phase. A source selection statement by NASA provided further details on cost and overall feasibility on 9 April, 2024. The Intuitive Machines proposal was for $1.692 billion, Lunar Outpost for $1.727 billion and Astrolab for $1.928 billion to develop the vehicle.

Video credit: NASA

Wikipedia dicit:

Solar sails (also known as lightsails, light sails, and photon sails) are a method of spacecraft propulsion using radiation pressure exerted by sunlight on large surfaces. A number of spaceflight missions to test solar propulsion and navigation have been proposed since the 1980s. The first spacecraft to make use of the technology was IKAROS, launched in 2010.

A useful analogy to solar sailing may be a sailing boat: the light exerting a force on the large surface is akin to a sail being blown by the wind. High-energy laser beams could be used as an alternative light source to exert much greater force than would be possible using sunlight, a concept known as beam sailing. Solar sail craft offer the possibility of low-cost operations combined with high speeds (relative to chemical rockets) and long operating lifetimes. Since they have few moving parts and use no propellant, they can potentially be used numerous times for the delivery of payloads.

Solar sails use a phenomenon that has a proven, measured effect on astrodynamics. Solar pressure affects all spacecraft, whether in interplanetary space or in orbit around a planet or small body. A typical spacecraft going to Mars, for example, will be displaced thousands of kilometers by solar pressure, so the effects must be accounted for in trajectory planning, which has been done since the time of the earliest interplanetary spacecraft of the 1960s. Solar pressure also affects the orientation of a spacecraft, a factor that must be included in spacecraft design.

Video credit: NASA’s Ames Research Center

They will always be remembered…

Apollo 1 (January 27, 1967)

Virgil “Gus” Grissom – Commander, Edward White – Command Pilot, Roger Chaffee – Pilot

STS-51 L (January 28, 1986)

Francis R. Scobee – Commander, Michael J. Smith – Pilot, Judith A. Resnik – Mission Specialist 1, Ellison Onizuka – Mission Specialist 2, Ronald E. McNair – Mission Specialist 3, Gregory B. Jarvis – Payload Specialist 1, Sharon Christa McAuliffe – Payload Specialist 2

STS-107 (February 1, 2003)

Rick D. Husband – Commander, William C. McCool – Pilot, Michael P. Anderson – Payload Commander, David M. Brown – Mission Specialist 1, Kalpana Chawla – Mission Specialist 2, Laurel Clark – Mission Specialist 3, Ilan Ramon – Payload Specialist 1

Video credit: NASA

NASA dicit:

A scale model of the Mars Ascent Vehicle is tested for in the trisonic wind tunnel at Marshall. The tunnel’s test sections are only 14 inches in height and width but can achieve wind speeds of up to Mach 5.

The Mars Ascent Vehicle team recently completed testing at NASA facility that has been a critical part of missions going all the way back to the Apollo program. The same facility is now helping the agency prepare to launch the first rocket from Mars.

The MAV is an important part of the joint plan between NASA and ESA (European Space Agency) to bring scientifically selected Martian samples to Earth in the early 2030s.

Video credit: NASA’s Marshall Space Flight Center

Wikipedia dicit:

Lucy is a NASA space probe on a twelve-year journey to eight different asteroids, visiting two main belt asteroids as well as six Jupiter trojans, asteroids which share Jupiter’s orbit around the Sun, orbiting either ahead of or behind the planet. All target encounters will be flyby encounters. The Lucy spacecraft is the centerpiece of a US$981 million mission.

On 4 January 2017, Lucy was chosen, along with the Psyche mission, as NASA’s Discovery Program missions 13 and 14 respectively.

The mission is named after the Lucy hominid fossils, because study of the trojans could reveal the “fossils of planet formation”: materials that clumped together in the early history of the Solar System to form planets and other bodies. The hominid was named after the 1967 Beatles song “Lucy in the Sky with Diamonds”. The spacecraft carries a disc made of lab-grown diamonds for its L’TES instrument.

Video credit: NASA Goddard