Our Awesome Universe

Pic of the Week: Spiral Galaxy LEDA 2046648

Posted on February 16, 2023 by onespaceman2000

^{Image (Credit): Spiral glaxy LEDA 2046648 as captured by the JSWT. (ESA/Webb, NASA & CSA, A. Martel)}

This week’s image is from the James Webb Space Telescope (JWST). It shows a spiral galaxy that appears much like our own (bottom center), though this one is a billion light-years away. Do occupants of that galaxy also see us? Good luck communicating when it will take 2 billion years to receive a response to a message you just sent out.

Here is the full story from the European Space Agency (ESA), which posted this as its Picture of the Month just last month:

A crowded field of galaxies throngs this Picture of the Month from the NASA/ESA/CSA James Webb Space Telescope, along with bright stars crowned with Webb’s signature six-pointed diffraction spikes. The large spiral galaxy at the base of this image is accompanied by a profusion of smaller, more distant galaxies which range from fully-fledged spirals to mere bright smudges. Named LEDA 2046648, it is situated a little over a billion light-years from Earth, in the constellation Hercules.

One of Webb’s principle science goals is to observe distant galaxies in the early universe to understand the details of their formation, evolution, and composition. Webb’s keen infrared vision helps the telescope peer back in time, as the light from these distant galaxies is redshifted towards infrared wavelengths. Comparing these systems with galaxies in the local universe will help astronomers understand how galaxies grew to form the structure we see today. Webb will also probe the chemical composition of thousands of galaxies to shed light on how heavy elements were formed and built up as galaxies evolved.

A Day in Astronomy: The Leviathan of Parsonstown

Posted on February 15, 2023 by onespaceman2000

^{Image (Credit): The Leviathan of Parsonstown, or Rosse six-foot telescope. (Planetary Society)}

On this day in 1845, a 72-inch reflecting telescope built by William Parsons, the 3rd Earl of Rosse, came into use on his estate in Ireland. The telescope remained the largest in the world until 1917, when it was eclipsed by the Hooker reflecting telescope in California.

Known as both the Leviathan of Parsonstown and Rosse six-foot telescope, it was used William Parson to observe star clusters and nebulae. For example, it was used to view a spiral nebula that we know today as the spiral galaxy Messier 51, or The Whirlpool Galaxy, which is about 31 million light years from Earth (see below). You can see The Whirlpool Galaxy today with a pair of binoculars.

Go here for more information on the Earl and his telescope.

^{Image (Credit): Spiral galaxy Messier 51, also called The Whirlpool Galaxy. (NASA, ESA, S. Beckwith (STScI) and the Hubble Heritage Team (STScI/AURA))}

Television: Hello Tomorrow! Arrives This Week

Posted on February 14, 2023 by onespaceman2000

Would you buy a lunar timeshare from Billy Crudup? Be careful how you answer. Or would you simply watch a show about Billy Crudup trying to sell lunar timeshares? I think you can answer yes to that with little risk of disappointment.

While Elon Musk is trying to sell us on Mars, I like how the focus of Hello Tomorrow! is closer to home. It is Artemis III meets Century21. The 10-episode series starts this Friday (February 17). Check out this trailer for more on what awaits you.

The Earth shown in the new series is already pretty different than what we have today with its floating cars and jet packs, so why not shoot for the Moon? For some reason, it appears it will not be that easy, but that is part of the drama. At least they will have their floating cars whatever else happens. We are still figuring out electric cars.

I was disappointed with SyFy’s The Ark, which seems to be a comedy masquerading as a tragedy wrapped in a farce. I am hoping Hello Tomorrow! is a somewhat more straightforward – just pure fun.

The White House Admits UFO but Denies ET

Posted on February 13, 2023February 14, 2023 by onespaceman2000

^{Image (Credit): White House briefing podium. (TVNewsCheck)}

With a third unidentified object (aka UFO) shot down from the northern skies, the White House thought it was necessary to set the record straight earlier today. According to Politico, White House press secretary Karine Jean-Pierre made the administration’s position very clear:

I know there have been questions and concerns about this, but there is no — again no indication — of aliens or extraterrestrial activity with these recent takedowns…I wanted to make sure that the American people knew that, all of you knew that and it was important for us to say that from here because we’ve been hearing a lot about it.

It seems Gen. Glen VanHerck, commander of the North American Aerospace Defense Command and U.S. Northern Command, was not as quick denying an extraterrestrial origin during a Sunday interview, stating:

I’ll let the intel community and the counterintelligence community figure that out. I haven’t ruled out anything.

We have enough problems with the Russians and Chinese without some pesky aliens getting in the way. Talk about timing!

Rest assured that the White House is on top of it.

Update: I just hope that we are not shooting down our own space objects. In a February 14th article, The New York Times reported that the National Weather Service alone launches about 60,000 high-flying balloons annually. When you add NASA balloons and others from U.S. departments, you can only hope that the left hand knows what the right hand is doing. Internationally, we may need the World Meteorological Organization and other international bodies to help sort out the clutter in the lower atmosphere.

Space Quote: Google’s Expensive Mistake Regarding the JWST

Posted on February 12, 2023September 27, 2023 by onespaceman2000

^{Image (Credit): Actual image of the exoplanet 2M1207b (red) around its star 2M1207A. (European Southern Observatory)}

“What new discoveries from the James Webb space telescope (JWST) can I tell my nine-year old about?”

-The one question put to Google’s Bard AI program, which was designed to rival Microsoft’s ChatGPT. In response, Bard stated the JWST took the very first pictures of an exoplanet, which was incorrect. The first image of an exoplanet can be seen above, taken by the European Southern Observatory’s Very Large Telescope back in 2004. The exoplanet, called 2M1207 b, is a gas giant about five times the mass of Jupiter. Following the erroneous feedback, the stock of Google’s parent Alphabet dropped about $100 billion in value. Below is an image from another exoplanet spotted by the JWST last year, called HIP 65426 b, which is about six to eight times the mass of Jupiter.