Typically when we think of astronomy, we think of pictures of M87 captured on a backyard telescope or the soaring colorful peaks of the Eagle Nebula seen by Hubble. But perhaps the most influential type of astronomy of the last 100+ years doesn’t directly result in the stunning pictures we’re so accustomed to today. It captures radio waves from some of the most interesting objects in the universe. And in her new book, The Echoing Universe: How Radio Astronomy Helps Us See the Invisible, Dr. Emma Chapman, a radio astronomer at the University of Nottingham, tracks how these longest wavelengths of the electromagnetic spectrum have influenced the practice of astronomy and our understanding of our place in the universe.
Ingenuity, the Mars helicopter, which performed the first controlled, powered flight on another planet, was an excellent demonstration of human ingenuity. But it was just that - a demonstrator. The intention with Ingenuity was simply to prove that we could, in fact, fly on another planet. But now we’ve proved that we can, it’s time to do something more useful with that new ability - like do actual science. A new mission designed to do just that recently passed a critical testing milestone, opening the way for future Mars helicopter missions that will make Ingenuity look like our very first steps.
When people eventually head to the Moon for long-term exploration and habitation, they'll need equipment and habitats made of well-tested materials. That's where NASA's Lunar Environment Test Rig (LESTR) comes in handy. It simulates extreme cold lunar night conditions right here in a NASA Glenn lab, testing equipment in temperatures ranging from 40K to 125K (-233 C to -148 C) in a vacuum.
Galaxies grow through mergers and collisions, and astronomers want to know more about the mergers in the Milky Way's past. But mergers can stir up the stars in the resulting galaxy, making it difficult to determine exactly when an ancient merger occurred. A new study led by researchers at the Institute of Cosmos Sciences of the University of Barcelona (ICCUB) and the Institute of Space Studies of Catalonia (IEEC) may have overcome that challenge.
Today’s strip is an oldie called “idea”, and came with the following note from the author:
There’s an old strip up at J&M, page
It’s Draw Mohammed Day, and I’m away, so here’s an oldie from 2013. Remember: “There is no god, and Mohammed is his prophet.”
Help J&M to keep going by becoming a patron of Jesus & Mo:
or buy a book: – The latest J&M collection of J&M strips, which has a foreword by Jerry Coyne, is available here.
Peace and blessings,
Author J&M
Give the author a few bucks a month or so if you like the strip! Meanwhile, here’s “Idea”.
“Shahada pants,” also called “harem pants“, are baggy trousers once worn by Muslim women, and then became popular for women in the 20th century (these are also M. C. Hammer’s baggy trousers). It’s not clear why Mo is wearing what looks like a Speedo, unless he is going to don shahada pants:
Years of grievance against dust. It ruins lungs, suits, rovers, and Mars missions. The first installment of an apology, sort of, to the most annoying substance in the cosmos.
Pratyaydipta Rudra is back with part 2 of his duck photo series (part 1 is here), which of course features DUCKS. Pratyay’s IDs and comments are indented, and you can enlarge the photos by clicking on them:
Here is the second part of the series of photos that I took while spending time with a group of breeding Wood Ducks (Aix sponsa).
A couple of males doing their things:
A duckling floating by:
Mother showing kiddo how to search for food on/under the floating logs:
The duckling tries some on its ownL
A few more ducklings join in:
Like mother like baby. Part 1: The sweet call!:
Like mother like baby. Part 2: The wing flaps!:
A couple of ducklings resting on the rock:
There were four in total. I think at this time they were aware of me taking photos and got slightly alert:
Duckling swimming in…
Checking the “mirror”? Not an ugly duckling for sure:
Father was close by floating on the reflective water of the pond:
About 30-40% of all food produced is wasted and not consumed. That is a stunning figure – a third of produce goes to waste. That amount of food is grown on land area the equivalent of China, uses 45 trillion gallons of water, and produces about 3% of greenhouse gas emissions. An average American household of four spends about $3 thousand a […]
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