Thirty-Meter Telescope Future in Doubt

The Thirty Meter Telescope (TMT) partnership has turned down Spain’s bid to plant the long-stalled giant on La Palma, ending a last-ditch attempt to move the project from Hawaii’s Mauna Kea to the Roque de los Muchachos Observatory. After more than a decade of protests and permitting delays on the preferred Hawaiian summit, Spain put a package of up to €1 billion on the table; roughly €400 million from its technology agency plus loans involving the European Investment Bank and Spain’s official credit institute; if the consortium would commit to the Canary Islands site. The TMT International Observatory replied that its members (California, Caltech, Canada, India, and Japan) could not reach the consensus needed to accept the offer. The letter praised Spain’s “extraordinary” commitment and the scientific quality of the Roque, but construction there will not start in the near term.

For backyard observers, the news is a reminder of how hard it has become to finish the next generation of 30-meter-class telescopes. TMT was meant to give the Northern Hemisphere a counterpart to the southern giants now rising in Chile, opening deeper views of exoplanets, the first galaxies, and the faint outer solar system. La Palma already hosts the 10.4-meter Gran Telescopio Canarias and a dense cluster of other instruments under some of Europe’s darkest, steadiest skies; adding TMT would have made the island a true northern flagship. Instead, the project remains tied to Mauna Kea, where a new management authority is still working through community and legal issues, and some insiders now openly wonder whether TMT will be built at all. The Instituto de Astrofísica de Canarias says it will keep developing the Roque and look for other large facilities.

For us amateurs who follow big-telescope news the way others follow sports, the story is bittersweet: another chapter closed, the universe still waiting for that 30-meter mirror to open.

Read More: https://skyandtelescope.org/astronomy-news/rejected-spains-proposal-to-build-the-thirty-meter-telescope-on-la-palma/

Scientists Measure Black Hole Formations

JWST observations of galaxies less than a billion years after the Big Bang revealed unexpectedly massive black-hole “seeds,” which is hard to explain if those objects had to grow from ordinary stellar-mass remnants. That tension has revived the direct-collapse black hole (DCBH) picture: a massive, metal-poor gas cloud in the center of an early galaxy collapses in one shot into a heavy seed rather than assembling through a long chain of mergers.

An international team led by Alessandro Trinca used dark-matter merger trees from high-resolution N-body simulations, then fed those histories into the Cosmic Archaeology Tool to track which halos could actually form DCBHs. The models show that the most favorable sites are cosmic over-densities—regions already packed with gas, dust, and merging dark-matter clumps. Direct collapse can begin as early as about 500 million years after the Big Bang and continues until metal enrichment from the first supernovae shuts the channel down a few hundred million years later.

Those results give observers a concrete target: the descendants of DCBHs should turn up as companion AGN near bright quasars at redshift ~7. Finding a large population of such neighbors in future JWST surveys would be strong evidence that the first supermassive black holes grew in clustered, over-dense environments rather than in isolation.

Read More: https://www.universetoday.com/articles/researchers-measure-the-environment-where-the-first-supermassive-black-holes-formed

Roman Space Telescope – 22 Years of Science?

I’m a bit late getting to post tonight, but here we go!

NASA’s Nancy Grace Roman Space Telescope, which I will henceforth refer to simply as the Roman Space Telescope, is quite an enigma as far as government space observatories go. Especially at a time when much of what the public knows as an example of a large-scale telescope is the long-delayed, long over-budget, but eventually launched James Webb Space Telescope (JWST). In the case of Roman, its design was refined over the years and it actually was delivered to NASA at almost 1,000kg lighter than originally intended.

That lighter design allowed NASA to put additional fuel into the telescope to boost its potential mission length. Then, things got good! When the engine made its burn to enter the L2 Lagrange point, the burn was 90% more efficient than expected; only burning 18 kg of the 200 kg engineers expected.

With all of that in mind, Roman now has enough fuel on board to potentially conduct science operations for 22 years! The potential boost to the mission’s lifespan really speaks to the engineering prowess and technical expertise of all the teams involved with this project. Personally, I’m excited to see what new mysteries Roman opens up for us!

Read the full article: https://www.space.com/astronomy/22-years-of-science-nasas-roman-space-telescope-doubles-its-lifetime-with-super-precise-engine-burn

Swift Observatory Coming Home In Flames

It isn’t the ending that NASA was hoping for, but it’s the one we’ll have to learn to live with. The Neil Gehrels Swift Observatory, which has been in orbit for 22 years studying gamma-ray bursts has an orbit that is quickly decaying and will soon burn up in Earth’s atmosphere. Earlier this month, a daring mission was undertaken in partnership with NASA by Katalyst Space Technologies to boost the telescope to a higher orbit. However, the LINK orbiter, as the Katalyst vehicle is called, began experiencing thruster problems as it approached within nine (9) miles of the observatory.

Artist’s Concept of LINK with the Swift Observatory (Credit: NASA/Katalyst)

Unfortunately, there is not enough time or resources for NASA to save the dying telescope, so they recently re-activated all of its science instruments and are attempting to get as much use out of it as possible before it plunges back to Earth. As of the time of this post, NASA doesn’t have an estimated date or time for when the telescope will re-enter the atmosphere, but preliminary estimates put the return between the end of October 2026 and early December 2026.

Read More: https://www.space.com/space-exploration/missions/private-mission-to-save-nasas-swift-space-telescope-fails