Image (Credit): A 2024 image of the Crab Nebula captured by NASA’s Hubble Space Telescope. (NASA, ESA, STScI, William Blair (JHU); Image Processing: Joseph DePasquale (STScI))
This week’s image is from the Hubble Space Telescope. It is an image of the Crab Nebula taken 25 years after the Hubble’s first image of the nebula. If you want to learn more about this history, a paper titled The Crab Nebula Revisited Using HST/WFC3 can be found in The Astrophysical Journal.
Here is a little more from NASA on earlier sightings of the nebula:
This new Hubble observation continues a legacy that stretches back nearly 1,000 years, when astronomers in 1054 recorded the supernova as an impressively bright new star that, for weeks, was visible even during the day. The Crab Nebula is the aftermath of SN 1054, located 6,500 light-years from Earth in the constellation Taurus…
The supernova remnant was discovered in the mid-18th century, and in the 1950s Edwin Hubble was among several astronomers who noted the close correlation between Chinese astronomical records of a supernova and the position of the Crab Nebula. The discovery that the heart of the Crab contained a pulsar — a rapidly rotating neutron star — that was powering the nebula’s expansion finally aligned modern observations and ancient records.
Rocket Company Issues: Blue Origin’s New Glenn rocket will be grounded while the Federal Aviation Administration investigates the matter.
Satellite Company Issues: AST, the owner of the Bluebird 7 satellite placed in the wrong orbit, will now need to “de-orbit” its satellite. This means the satellite will be burned up in the Earth’s atmosphere. It also means that the roll out of AST SpaceMobile will be delayed, which has impacted the company’s stock.
Artemis Issues: The timeline for Artemis III, where NASA tests the lunar landers, may need to be delayed, at least for Blue Origin. Of course, SpaceX is having its own problems getting its Starship ready.
Astronomy Issues: The Bluebird satellites have been controversial because of their large size. This will only add to the growing light pollution from orbiting satellites that impact ground-based astronomers. So, in this case, with the loss of Bluebird 7 the astronomers get a reprieve for now.
So, three negative outcomes and one position outcome. A turnaround on all of these issues will take time, including the design of the satellite itself. While it appears each generation of the Bluebird satellite is getting larger, this could be a fixable problem given that AST stated it is willing to work with the National Science Foundation to limit the damage to the night sky.
Jeff Bezos’ rocket company, Blue Origin, blamed a bad engine Monday for a failed weekend launch that left a satellite in the wrong orbit, dooming it. Launches of the huge New Glenn rocket are grounded until Blue Origin and the Federal Aviation Administration complete their investigation.The rocket blasted off from Cape Canaveral Space Force Station on Sunday. The recycled first-stage booster performed well, landing on an ocean barge several minutes into the flight. But the upper stage was unable to put the satellite into a high enough orbit to begin operations.
The Space Force is launching a new acquisition task force to study how the Defense Department should move into cislunar space as it looks to support a planned NASA moon base, according to Maj. Gen. Stephen Purdy, senior advisor to Air Force Secretary Troy Mink for space acquisition. “We’re going to stand up a Cislunar Coordination Office on the Space Force acquisition side,” he told the annual Space Symposium here on April 15, who said the new office will bring together program managers and engineers to “build road maps” for “acquiring the necessary technology and a schedule for action.”
A US move to freeze the Lunar Gateway orbiting space station could render Japan’s new technologies redundant – but its space agency is expected to be diplomatic in its response. The Lunar Gateway project was initially planned as an installation that would orbit the moon as part of the United States’ Artemis programme, which recently made headlines for a record-breaking journey that went deeper into space than anyone had ever flown before…On March 24, however, Nasa announced it was freezing the project to focus on the construction of a base on the lunar surface, with future crewed missions to Mars in mind…The agency is now expected to focus all its attention on the third element of its collaboration with Nasa, the pressurised lunar rover that is being developed with Toyota to allow astronauts to drive on the moon.
Image (Credit): An artist’s rendering of Voyager 1. (NASA/JPL-Caltech)
“While shutting down a science instrument is not anybody’s preference, it is the best option available…Voyager 1 still has two remaining operating science instruments — one that listens to plasma waves and one that measures magnetic fields. They are still working great, sending back data from a region of space no other human-made craft has ever explored. The team remains focused on keeping both Voyagers going for as long as possible.”
–Statement by Kareem Badaruddin, Voyager mission manager at the Jet Propulsion Laboratory, regarding NASA’s decision to shut down the Low-energy Charged Particles experiment (LECP). The instrument measures low-energy charged particles, such as ions, electrons, and cosmic rays, helping NASA to better understand the region of space where Voyager 1 is located. The LECP was turned of on Voyager 2 back in March 2025.
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