Wikipedia dicit:
On December 9, 2020, Starship serial number 8 (SN8) completed a high-altitude flight test as it successfully ascended, transitioned propellant, and demonstrated a first-of-its-kind controlled aerodynamic descent and landing flip maneuver – which will enable landing where prepared surfaces or runways do not exist, including the Moon, Mars, and beyond.
Video credit: SpaceX
Wikipedia dicit:
The Exploration Upper Stage (EUS) is being developed as a large second stage for Block 1B of the Space Launch System (SLS), succeeding Block 1’s Interim Cryogenic Propulsion Stage. It will be powered by four RL10-C3 engines burning liquid oxygen and liquid hydrogen to produce a total of 440 kN (99,000 lbf) thrust. As of February 2015, the SLS Block 1B will provide thrust of 105 t (103 long tons; 116 short tons). The EUS is expected to first fly on Artemis IV in 2025.
Video credit: Aerojet Rocketdyne
CopSub dicit:
Copenhagen Suborbitals is the world’s only crewed, crowdfunded space program. In the future, a volunteer astronaut will fly to space on our home-built rocket. We do this on our spare time, all the donations go to paying our workshop rent and buying materials. We are forever thankful to each of our supporters!
Video credit: Copenhagen Suborbitals
Wikipedia dicit:
Mars 2020 is a Mars rover mission by NASA’s Mars Exploration Program that includes the Perseverance rover and the Ingenuity helicopter drone. It was launched on 30 July 2020 at 11:50 UTC, and will touch down in Jezero crater on Mars on 18 February 2021.
Perseverance will investigate an astrobiologically relevant ancient environment on Mars and investigate its surface geological processes and history, including the assessment of its past habitability, the possibility of past life on Mars, and the potential for preservation of biosignatures within accessible geological materials. It will cache sample containers along its route for retrieval by a potential future Mars sample-return mission. The Mars 2020 mission was announced by NASA on 4 December 2012 at the fall meeting of the American Geophysical Union in San Francisco. The Perseverance rover’s design is derived from the Curiosity rover, and will use many components already fabricated and tested, new scientific instruments and a core drill.
Mars 2020 was the third of three space missions sent toward Mars during the July 2020 Mars launch window, with missions also launched by the national space agencies of the United Arab Emirates (Hope orbiter) and China (Tianwen-1, with an orbiter, lander, and rover). All three are expected to arrive at Mars in February 2021.
Video credit: NASA/JPL-Caltech
SpaceX dicit:
On Wednesday, December 9, Starship serial number 8 (SN8) lifted off from our Cameron County launch pad and successfully ascended, transitioned propellant, and performed its landing flip maneuver with precise flap control to reach its landing point. Low pressure in the fuel header tank during the landing burn led to high touchdown velocity resulting in a hard (and exciting!) landing.
Video credit: SpaceX
NASA dicit:
Plants play a key role in mitigating climate change. The more carbon dioxide they absorb during photosynthesis, the less carbon dioxide remains trapped in the atmosphere where it can cause temperatures to rise. But scientists have identified an unsettling trend – 86% of land ecosystems globally are becoming progressively less efficient at absorbing the increasing levels of CO2 from the atmosphere.
Video credit: NASA’s Goddard Space Flight Center/Scientific Visualization Studio/Kathryn Mersmann (USRA): Lead Producer/Esprit Smith (KBR): Lead Writer/Benjamin Poulter (NASA/GSFC): Scientist
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