Lifeboat Foundation: Safeguarding Humanity
Toggle light / dark theme

Blog

Category: cosmology – Page 205

NGC 7,727 will someday merge with a nearby galaxy — and intertwine their black holes in the process.

The galaxy’s violent past is written into its shape and composition, and the details are visible via telescope. This week, the European Southern Observatory released a new image of NGC 7,727 taken with the ground-based Very Large Telescope (VLT).

Captured in visible light with the VLT’s FOcal Reducer and low dispersion Spectrograph 2 instrument, streams of dust kicked up by the two merging galaxies can be seen spiraling around NGC 7727. Bright blue and purple clusters of stars dot the inner arms of the galaxy.

And its lopsided shape is no coincidence: as its two parent galaxies spun dusty circles around each other, the newly-formed NGC 7,727 came into being in a rather uneven way.

Continue reading “Behold! Telescope image captures a dusty dance from merging galaxies” | >

Have we found a water planet with deep oceans nearby (in astronomical terms)? Could water worlds be plentiful near red dwarf stars? Would life have a better chance on such worlds? Listen to see what we know so far about this and planet TOI-1452 b.

Worm-hole generators by the pound mass: https://greengregs.com/

For gardening in your Lunar habitat Galactic Gregs has teamed up with True Leaf Market to bring you a great selection of seed for your planting. Check it out: http://www.pntrac.com/t/TUJGRklGSkJGTU1IS0hCRkpIRk1K

Awesome deals for long term food supplies for those long missions to deep space (or prepping in case your spaceship crashes: See the Special Deals at My Patriot Supply: www.PrepWithGreg.com.

Continue reading “Water World Found? Just 100 Light Years Away! Prospects for Life Profound” | >

A tour of the Space Launch System (SLS) Artemis-I Rocket.
Worm-hole generators by the pound mass: https://greengregs.com/
For gardening in your Lunar habitat Galactic Gregs has teamed up with True Leaf Market to bring you a great selection of seed for your planting. Check it out: http://www.pntrac.com/t/TUJGRklGSkJGTU1IS0hCRkpIRk1K
Awesome deals for long term food supplies for those long missions to deep space (or prepping in case your spaceship crashes: See the Special Deals at My Patriot Supply: www.PrepWithGreg.com.

Read more | >

A black hole is matter and/or light crammed into such a tiny volume that nothing can escape. But, shortly after the big bang, the observable universe was that small. How did it escape?! Brilliant for 20% off: http://brilliant.org/ScienceAsylum.

Creator/Host: Nick Lucid.
Writer: Nick Lucid.
Copy Editor: Nick Lucid.
Editor/Animator: Nick Lucid.

VIDEO ANNOTATIONS/CARDS

Black Holes are Inescapable:

Continue reading “Is the Universe a giant Black Hole?” | >

Finally, there’s the issue that black holes can destroy information. Once you have crossed the event horizon, it seems you’d need to move faster than light to get back out. But a non-local connection across the horizon would also get information out. Some physicists have even suggested that dark matter, a hypothetical type of matter that supposedly makes up 85% of matter in the universe, is really a misattribution. There may be only normal matter, it’s just that its gravitational attraction is multiplied and spread out because places are non-locally connected to each other.

A non-locally connected universe, hence, would make sense for many reasons. If these speculations are correct, the universe might be full with tiny portals that connect seemingly distant places. The physicists Fotini Markopoulou and Lee Smolin estimated that our universe could contain as much as 10,360 of such non-local connections. And since the connections are non-local anyway, it doesn’t matter that they expand with the universe. The human brain, for comparison, has a measly 1015connections.

Let me be clear that there is absolutely zero evidence that non-local connections exist, or that, if they existed, they’d indeed allow the universe to think. But we cannot rule this possibility out either. Crazy as it sounds, the idea that the universe is intelligent is compatible with all we know so far.

Read more | >

The stunning observation of the Cartwheel galaxy by JWST has revealed the exceptional ability that the latest space observatory has. The birthplace of new stars, the hot gas, and the activity of the supermassive black hole are all shining in this incredible photograph. But there’s more. Now you can sit back, relax, and fly towards that galaxy like a starship captain thanks to a video reconstruction that takes you from here to there.

It is located 500 million light-years away and you’ll start by passing a lot of nearby stars and the odd galaxy until the cartwheel galaxy and some near and far galaxies come into view and get closer and closer. The released image itself was incredible but seeing in the video how a little speck of darkness becomes a galaxy 145,000 light-years across is absolutely mind-blowing.

The Cartwheel is a galaxy merger. It underwent a bullseye-style collision with a smaller companion within the last one billion years, causing the spiral arms that would be expected for such a galaxy to disappear into two expanding circles. And the “spokes” are the galaxy slowly trying to reform its normal spiral shape. This is a process that will last for millions of years so we can continue to enjoy the incredible object for a long time yet.

Read more | >

Unlike the plethora of high-res cosmic photography we’ve been blessed with this year, this breathtaking snap doesn’t come from the James Webb telescope but instead, it comes from two astrophotographers who met each other on Reddit.

Stargazers Andrew McCarthy and Connor Matherne first connected on Reddit and then Instagram several years ago after becoming mutual fans of each other’s work.

McCarthy is renowned in his field for his incredibly detailed photographs, taking tens of thousands of photos and stitching them together in a ‘mosaic’ fashion to create incredibly detailed and precise images of his subjects.

Read more | >