Both SpaceX’s Falcon Heavy and Starship could take to the skies next week in an action-packed few days for Elon Musk’s space firm.
SpaceX showed off its Falcon Heavy rocket ahead of its next launch, scheduled for April 18.
SpaceX prepares for the next Falcon Heavy launch.
SpaceX / Twitter.
WASHINGTON — The ground terminals used to operate U.S. military and intelligence satellites are running out of capacity and in dire need of upgrades, warns a new report from the Government Accountability Office.
GAO auditors spent more than a year investigating the state of the Satellite Control Network, operated by the U.S. Space Force. The network of 19 parabolic antennas, first established in 1959, is distributed across seven locations around the world.
The SCN is facing “obsolescence challenges and potential capacity gaps as DoD and other agencies launch more satellite systems that will rely on the network,” says GAO in the report released April 10.
Remark: This article is from The Conversation “En Anglais” written by Victor DOS SANTOS PAULINO & Nonthapat PULSIRI (V&N) — Experts from Toulouse Business School and The SIRIUS Chair (France)
When talking about space, one might think about the stars one sees at night or a good sci-fi film. But space is also crowded with satellites, spacecrafts and astronauts, whose missions can last anywhere from several days to months. Meanwhile, 8,216 unmanned satellites revolve around Earth’s orbits to improve our daily lives. Communication satellites contribute to enhancing Internet access in regions deprived of infrastructure (so-called “white areas”); meteorology satellites have become essential for weather forecasts, while navigation satellites (including GPS) are crucial for current and future transportation needs such as automatic driving vehicles.
Dawn Aerospace.
In case you have not heard of them, Dawn Aerospace is one of the fastest-growing private space companies in the world, with clients from Europe, Asia, and the United States. They call themselves a “green” in-space propulsion supplier, and they also, to date, have around 11 operational satellites currently in orbit.
There’s enough trouble on this planet already that we don’t need new problems coming here from the sun. Unfortunately, we can’t yet destroy this pitiless star, so we are at its mercy. But NASA at least may soon be able to let us know when one of its murderous flares is going to send our terrestrial systems into disarray.
Understanding and predicting space weather is a big part of NASA’s job. There’s no air up there, so no one can hear you scream, “Wow, how about this radiation!” Consequently, we rely on a set of satellites to detect and relay this important data to us.
One such measurement is of solar wind, “an unrelenting stream of material from the sun.” Even NASA can’t find anything nice to say about it! Normally this stream is absorbed or dissipated by our magnetosphere, but if there’s a solar storm, it may be intense enough that it overwhelms the local defenses.
Richard Branson’s Virgin Orbit has filed for bankruptcy in the U.S. after an eleventh-hour scramble to secure further funding failed, the satellite company announced on Tuesday, marking the end of a sudden spiral that followed a botched high-profile launch attempt out of Britain in January.
Virgin Orbit has filed for Chapter 11 bankruptcy protection in the Bankruptcy Court for the District of Delaware, documents show.
Virgin Orbit said it had failed to secure sufficient funding to stay in business and the decision comes less than a week after it laid off most of its staff and ceased operations.
Virgin Orbit, which laid off most of its staff last week, struggled to secure funding after a failed satellite launch from the U.K. in January.
It is interesting to watch SpaceX continue to massively expand, with the goal of going from 61 launches last year to 100 launches this year.
SpaceX’s old record for a month was 7 launches, but in March they completed 8 launches, and almost did 9 but their latest launch had technical difficulties, and the closest they got to launch during the past two days was an abort with 2 seconds to go. They will try a 3rd time to launch this rocket tomorrow.
If SpaceX could do 9 launches/month, that would be 9 12 = 108 launches/year, or enough to meet their goal of 100 launches.
With Starlink now being profitable, they have a big incentive to launch as often as possible. The more they launch, the more they make!
Aurora Borealis can cause damage to satellites in severe solar storms. Scientists are experimenting to understand near-space weather better.
Some of the more well-known examples include retrievable and reusable rockets, retrieval at sea, mid-air retrieval, single-stage-to-orbit (SSTO) rockets, and kinetic launch systems.
In addition, there are also efforts to develop propulsion systems that do not rely on conventional propellants. This technology offers many advantages, including lower mass and improved energy efficiency, ultimately lowering costs.
On June 10, 2023, an all-electrical propulsion system for satellites (the IVO Quantum Drive) will fly to space for the first time. The system was built by North Dakota-based wireless power company IVO, Ltd. and will serve as a testbed for an alternative theory of inertia that could have applications for propulsion.
OneWeb’s latest satellite launch gives it enough coverage to offer global broadband from space, putting it in direct competition with SpaceX’s Starlink service.
