OrbitalHub

NASA dicit:

Launch of the SpaceX Falcon 9 rocket took place from Kennedy’s Launch Pad 39A at 2:20 p.m. EST on Saturday, November 26, 2022.

Credit: NASA/SpaceX

NASA dicit:

A new NASA and Durham University simulation puts forth a different theory of the Moon’s origin – the Moon may have formed in a matter of hours, when material from the Earth and a Mars sized-body were launched directly into orbit after the impact. The simulations used in this research are some of the most detailed of their kind, operating at the highest resolution of any simulation run to study the Moon’s origins or other giant impacts.

Credit: NASA/ Durham University/Jacob Kegerreis

NASA dicit:

The DART mission deployed a kinetic impactor to smack the small moon Dimorphos of the asteroid Didymos on the evening of September 26. This was an on-orbit demonstration of asteroid deflection, a key test of NASA’s kinetic impactor technology, designed to impact an asteroid to adjust its speed and path. This particular asteroid moon is NOT a threat to Earth, but is technology being explored to use for when we DO find a potentially hazardous asteroid.

The Hubble Space Telescope captured these extraordinary views of the asteroid moon soon after the successful impact.

Credit: NASA Langley Research Center

NASA dicit:

NASA’s Low-Earth Orbit Flight Test of an Inflatable Decelerator (LOFTID) is currently at Vandenberg Space Force Base in California, where teams are preparing the novel technology for launch as a secondary payload with the National Oceanic and Atmospheric Administration’s (NOAA) Joint Polar Satellite System-2 (JPSS-2) satellite, which will help track and predict Earth’s weather and climate.

Credit: NASA Langley Research Center

NASA dicit:

The SpaceX Falcon 9 rocket and Crew Dragon Endurance lifted off from Launch Complex 39A at NASA’s Kennedy Space Center in Florida at noon EDT on Oct. 5, 2022. Onboard the Dragon spacecraft are NASA astronauts Nicole Aunapu Mann and Josh Cassada, JAXA (Japan Aerospace Exploration Agency) astronaut Koichi Wakata, and Roscosmos cosmonaut Anna Kikina for the mission to the International Space Station.

Credit: NASA

NASA Langley Research Center dicit:

NASA’s Low-Earth Orbit Flight Test of an Inflatable Decelerator, or LOFTID, is demonstrating a cross-cutting aeroshell — a type of heat shield — for atmospheric re-entry. For destinations with an atmosphere, one of the challenges NASA faces is how to deliver heavy payloads (experiments, equipment, and people) because current rigid aeroshells are constrained by a rocket’s shroud size. One answer is an inflatable aeroshell that can be deployed to a scale much larger than the shroud. This technology enables a variety of proposed NASA missions to destinations such as Mars, Venus, Titan as well as return to Earth.

When a spacecraft enters an atmosphere, aerodynamic forces act upon it. Specifically, aerodynamic drag helps to slow it down, converting its kinetic energy into heat. Utilizing atmospheric drag is the most mass-efficient method to slow down a spacecraft.

The atmosphere of Mars is much less dense than that of Earth and provides an extreme challenge for aerodynamic deceleration. The atmosphere is thick enough to provide some drag, but too thin to decelerate the spacecraft as quickly as it would in Earth’s atmosphere. LOFTID’s large deployable aeroshell — an inflatable structure protected by a flexible heat shield — acts as a giant brake as it traverses the Martian atmosphere. The large aeroshell creates more drag than a traditional, smaller rigid aeroshell. It begins slowing down in the upper reaches of the atmosphere, allowing the spacecraft to decelerate sooner, at higher altitude, while experiencing less intense heating.

Credit: NASA Langley Research Center