In Case You Missed It: Hubble Finds Water on an Exoplanet

Posted on by onespaceman2000
Image (Credit): Recent JWST analysis of exoplanet WASP-96 b. (NASA, ESA, CSA, and STScI)

The recent James Webb Space Telescope (JWST) images included hot gas giant exoplanet WASP-96 b, with NASA noting that the space telescope “…has captured the distinct signature of water, along with evidence for clouds and haze, in the atmosphere surrounding a hot, puffy gas giant planet orbiting a distant Sun-like star.”

The same NASA article also noted that the Hubble Space Telescope had found the first evidence of water on a exoplanet back in 2013. So I thought I would dig out that earlier from the European Space Agency, titled “Hubble Finds Water Vapour on Habitable-Zone Exoplanet for the First Time“:

With data from the NASA/ESA Hubble Space Telescope, water vapour has been detected in the atmosphere of a super-Earth within the habitable zone by University College London (UCL) researchers in a world first. K2-18b, which is eight times the mass of Earth, is now the only planet orbiting a star outside the Solar System, or exoplanet, known to have both water and temperatures that could support life.

The parent star, K2-18, is 110 light years from Earth in the constellation of Leo. Maybe we can convince the ESA and others to take another look with the JWST, assuming it is not already on the list of many upcoming projects.

In Case You Missed It: Public Views on the Space Program

Posted on by onespaceman2000
Image (Credit): Size of the Earth compared to Mars and the Moon. (hyperphysics.phy-astr.gsu.edu/)

Back in July 2019, the Pew Research Institute issued the results of earlier surveys about the US space program. Let’s look at the answers to six of the questions:

  1. Most Americans think sending astronauts to Mars or the Moon should be a lower priority for NASA – or say it should not be done at all (see graphic below).
  2. Americans see priorities other than a Moon or Mars landing as more pressing for NASA.
  3. Half of Americans think space travel will become routine during the next 50 years of space exploration.
  4. A majority of Americans say the U.S. must remain a global leader in space exploration, and that NASA’s continued involvement is essential.
  5. Americans have little confidence that private space companies will minimize space debris. 
  6. Americans are not enthusiastic about the idea of creating a military Space Force.

NASA may not be listening given that a trip back to the Moon was the lowest priority of Americans and yet is it the largest program currently in the U.S. space program, with a Moon satellite and trip to Mars as part of future plans. As far as minimizing space debris, the public seemed right on the mark regarding private space companies. If Elon Musk is any indicator, the commercial sector will not be deterred as it adds thousands of new satellites and related debris. And the ship has sailed on the Space Force question with the creation of the US Space Force in December 2019.

This would not be the first time Washington, DC goes down its own path regardless of public sentiment.

Image (Credit): Second question on the Pew survey on the space program. (Pew Research Institute)

In Case You Missed It: Farming on Mars

Posted on by onespaceman2000
Image (Credit): Matt Damon on Mars in the film The Martian. (20th Century Fox)

Back in a November 2020 article, Science News discussed the difficulties of farming on Mars, noting it was not as easy as Matt Damon’s character made it seem in the film The Martian. In fact, toxins discovered in the Martian soil has proven that growing potatoes with a bit of man-made manure is not possible.

In the article, “Farming on Mars will be a Lot Harder Than ‘The Martian’ Made it Seem,” the author noted that researchers put together a variety of soil samples to match the surface of Mars and determined that the soil that most closely matched the Martian soil was unable to grow vegetation for any length of time. Once that soil was modified to include calcium perchlorate, which makes up about 2 percent of Martian soil, nothing could grow at all. In other words, Matt Damon would have starved if he only had a latrine to support him.

The researchers are testing other possible soil types using materials that can be found on Mars, so Martian potatoes (or at least legumes) may be possible. We will just need to send Mr. Damon back to Mars to test these new approaches.

Extra: The BBC’s Science Focus website posted a more hopeful article around the same time highlighting what can be grown on Mars, but it also outlined a number of problems that will impact Martian farming, including less sunlight, lower temperatures, thinner atmosphere, radiation, and extreme seasonal variations. We don’t always realize how good we have it back here on our home planet.

In Case You Missed It: The Vatican’s Space Observatory

Posted on by onespaceman2000
Source/Credit: The telescope domes on the roof of the Vatican Observatory, at the Apostolic Palace in Castel Gandolfo from Andreas Solaro/AFP via Getty Images.

Just in case you missed it, I recommend you read NPR’s June 2021 article, “The Vatican’s Space Observatory Wants To See Stars And Faith Align.” You can read about the interplay of astronomy and the Catholic Church. For instance, did you know the idea of the Big Bang originated with a Belgian priest? Or that the Vatican Observatory coordinates with NASA on space issues?

You can learn more from the article. You might also want to visit the Vatican Observatory’s website or listen to one of the podcasts from the Observatory.

Click the image of Brother Guy Consolmagno for a video.