Pic of the Week: A Halloween Preview – N44

Posted on by onespaceman2000
Image (Credit): Nebula LHA 120-N44, or N44, as captured by the Hubble Space Telescope. (NASA, ESA/Hubble, D. Gouliermis)

Talk about eerie. This week’s image is from the NASA/European Space Agency’s (ESA) Hubble Space telescope. The ghostly image shows nebula LHA 120-N44, or N44, which is about 160,000 light-years away. It is within the Large Magellanic Cloud that orbits our galaxy.

Here is more from NASA describing what you are seeing:

N44 is dominated by two features: a vast central void and a shell of dense, dusty gas. The central void is a ‘superbubble’ spanning roughly 210 by 140 light-years across. The glittering stars at the center of the void are responsible for its creation; through their powerful stellar winds and explosive supernovae, these stars expelled much of the gas from which they were born.

When the stars of N44’s central star cluster swept away this gas, the expelled gas compressed and formed a shell around the superbubble. New stars are forming in this compressed gas shell, making N44 an interesting target for astronomers who are using the nebula to study how stars form in this environment. Their goal is to understand how long it takes from the collapse of cold gas clouds into dense knots to the moment nuclear fusion ignites in the heart of a newborn star.

Pic of the Week: Galactic Gems

Posted on by onespaceman2000
Image (Credit): A collection of 16 galactic images from Chandra and other telescopes. Each galactic image contains X-ray data from Chandra combined with data from telescopes such as NASA’s Webb, Hubble, IXPE, Swift, and NuSTAR, and others both in space and on the ground. (NASA/CXC/SAO)

This week’s images of 16 galaxies are from a variety of NASA telescopes. The galaxies are generally sorted into three types – spiral, elliptical, and irregular. For example, the Milky Way galaxy is a spiral galaxy, whereas Centaurus A (Cen A above) is a giant elliptical galaxy and NGC 1569 (also above) is a compact dwarf irregular galaxy.

Please go to this NASA link to see all of these galaxies in their full glory.

Pic of the Week: Dwarf Irregular Galaxy ESO 490-017

Posted on by onespaceman2000
Image (Credit): Image of the dwarf irregular glaxy ESO 490-017 (top center) captured by the Hubble Space Telescope. (NASA, ESA, R. Tully (University of Hawaii); Image Processing: G. Kober (NASA/Catholic University of America))

This week’s image is from the Hubble Space Telescope. It shows the dwarf irregular galaxy ESO 490-017 as a mist of stars in the upper center of the image (hence the term “irregular”). The galaxy is about 23 million light-years away and only 12,000 light years across, compared to the 100,000 light-year diameter of the Milky Way Galaxy. If you look carefully, you can spot a variety of regular galaxies in the background that blend in with the stars in the foreground.

House Budget Looking Better for NASA

Posted on by onespaceman2000
Credit: ABC’s Schoolhouse Rock

The Planetary Society has provided a nice summary of where the NASA funding battle is at this moment. Here is its latest summary of events:

  • The House budget bill that includes NASA funding just cleared a key hurdle, advancing out of the Appropriations Committee. This is the first funding bill for FY 2027 to be released and reach this stage, establishing congressional intent and rejecting the worst of the Office of Management and Budget’s proposed cuts to NASA.
  • The bill keeps NASA funding flat with the currently enacted budget, but reprioritizes funding levels across the agency, including a 17% cut to Science to offset increases elsewhere.
  • A number of science missions proposed for cancellation by the OMB see their funding protected by this bill, including OSIRIS-APEX, New Horizons, and the Chandra X-Ray Observatory. New programs initiated by Administrator Isaacman that were absent from the OMB proposal, like Space Reactor-1 Freedom, also see their first dedicated mention in the proposal.
  • The full House still needs to vote on this, and the Senate is expected to release its own proposal within weeks. Congress will then work to develop full-year funding, in anticipation of the start of FY 2027 on Oct. 1, but will likely require a short-term funding patch, which comes with its own hurdles.

I recommend you read the entire statement, House Appropriators Advance Key NASA Funding Bill, to fully understand the rigors of this Hill battle. Fortunately, both the House and Senate continue to be supportive of NASA’s work and Administrator Isaacman’s new direction for Artemis. It helps to have someone full time at the helm of the agency.

I was especially pleased to read that missions such as New Horizons and the Chandra X-Ray Observatory are being saved and key programs like the James Webb Space Telescope and the Hubble Space Telescope are no longer facing drastic cuts. It is unfortunate that the White House was so willing to destroy generations of space-related work – what have been called the crown jewels of our space program.

The budget battle is not over, but we are seeing that when good legislators push back, good things can happen.

Pic of the Week: Spiral Arm of Galaxy M51

Posted on by onespaceman2000
Image (Credit): View of an arm of the Messier 51 galaxy from both JWST and the Hubble Space Telescop. (ESA/Webb, NASA & CSA, A. Pedrini, A. Adamo (Stockholm University) and the FEAST JWST team)

This week’s image is from the James Webb Space Telescope (JWST) and Hubble Space Telescope, which together scanned about 9,000 star clusters in the four galaxies. What you are looking at above comes from the spiral arm of one of the galaxies – Messier 51 (M51).

Here is a description from the European Space Agency (ESA) regarding what you are seeing in the image:

A large, long portion of one of the spiral arms in galaxy M51. Red-orange, clumpy filaments of gas and dust that stretch in a chain from left to right comprise the arm. Shining cyan bubbles light up parts of the gas clouds from within, and gaps expose bright star clusters in these bubbles as glowing white dots. The whole image is dotted with small stars. A faint blue glow around the arm colours the otherwise dark background.