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Archive for the ‘Science!’ Category

If you missed yesterday’s blue moon, don’t worry, it will still look full tonight too. And as I should also have mentioned, it’s a micromoon (the opposite of a supermoon). The moon is at apogee, or as far from us as it can get. Right now, that’s about 251,000 miles away. 

Here’s a NASA Astronomy Picture of the Day showing the difference between a supermoon and a micromoon. It’s not nothing! 

If you have a chance to see the (almost) full moon tonight, count yourself lucky. The next blue micromoon won’t happen until 2053.

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Tomorrow night is the second full moon of May, which makes it a blue moon. They are rare but not very, as they happen every two or three years. The next one won’t happen until December 2028.

And this month, there’s a bonus!

Blue Moon, 4 planets to shine during the final weekend of May

People who step outside at the end of the month to catch a glimpse of the rare lunar event should also be able to spot Venus and Jupiter in the western sky about an hour after sunset. Meanwhile, early risers should be able to see Mars and Saturn in the eastern sky about an hour before daybreak.

I wanted to let you know a day ahead of time in case you, like me, like to have these things on your calendar!

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The Surprising Truth About What Outer Space Smells Like

Some space veterans seemed to find this scent quite pleasant. “It is hard to describe this smell; it is definitely not the olfactory equivalent of describing the palate sensations of some new food that ‘tastes like chicken.’ 

Yes, these are the things I find interesting about space. Not the math (with apologies to all my math teachers ever) or the physics (with apologies to all the classes I never took), but the lived experience. 

When I’m thinking about a story and need to ground the reader, this sort of information is useful. What would it feel like, what would it taste like?

What would it smell like?

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Recently, Neil deGrasse Tyson visited Stephen Colbert to talk about aliens and his new book Take Me To Your Leader: Perspectives On Your First Alien Encounter. He discussed aliens, why you probably shouldn’t shake hands, and how they might mirror what they see of humanity. 

It made me think of the story I wrote on that topic, and how I hope that humanity does more good than not. I’ve re-posted before but I like the story, so here it is again. Click through for the full piece.

We Are Mirrors | J.R. Johnson

You and Yours

I came from the stars to meet you. I was happy. Excited, even. First contact with your verdant world. Think of all that we could share with you.

“You” could have meant a lot of things. I started with one of the most populous. An insect.

I remember little of what it was like, a flash of light, a warm wriggle in a puddle after rain. The feel of wind in my wings.

It’s embarrassing to say this now, but I was promptly eaten.

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Here’s an interesting interview with astronaut and naval aviator Victor Glover, pilot for Artemis II’s Orion spacecraft.

Artemis II pilot talks about what it was really like to fly and land in Orion – Ars Technica

And when those parachutes came out, when the mains came out, it was like God himself led us down to the water. And I had a big old grin on my face. It was intense. It went from intense to pure elation.

If you are curious about what it’s like to pilot in space, the difference between a touchscreen controller and stick-and-throttle hand controllers, or the “very intense” 13 minutes and 36 seconds of reentry, read on.

I was!

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NASA reminded me that we have a new, if transitory, neighbor in the skies overhead. The comet PanSTARRS is making a quick visit and tonight is the closest it will come to the sun.

APOD- 2026 April 18 – PanSTARRS and Planets

This is a good weekend for northern hemisphere comet watchers to try to catch PanSTARRS an hour or so before sunrise, as the comet grows brighter approaching its perihelion on April 19. On April 26 the comet makes its closest approach to our fair planet but by then will be difficult to see in the solar glare. Good views of this comet PanSTARRS in late April and early May will be from the southern hemisphere.

If your skies are clear and dark, check it out!

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Hooray!

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Today is the day, folks, when our friendly neighborhood astronauts make their (hopefully trouble-free) return to our home planet. 

As we wait for splashdown, anticipated to be just after 8pm EDT tonight, here is an interactive look at What’s Inside NASA’s Mission Control.

And to save you from tracking down one of the many (many) space-themed Artemis links I’ve put up over the past couple of days, you can watch tonight’s homecoming here starting at 6:30pm EDT!

NASA’s Artemis II Crew Comes Home (Official Broadcast) | NASA+

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Am I still on the Artemis II space train? I am, because the story is optimistic and nerdy and cool. 

You may have heard that the astronauts are getting wake-up songs from Mission Control. If you’ve wondered what those songs are, here you go!

All the Wake-up Songs Astronauts on Artemis II Have Heard So Far

Each morning, the flight crew is awoken by a song, hand-picked by Mission Control specialists back home on Earth. The long-standing practice keeps astronauts on schedule and connects them to the rest of humanity.

Here are the songs in YouTube playlist form: All Artemis II songs

The crew is scheduled to splash down tomorrow evening (April 10th), off the coast of San Diego. Stay tuned for that, and for the final entry in their wake-up playlist!

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Since my recent posts have spent a lot of time in space, let’s take a slight break from the nonfiction drama of NASA’s Artemis II mission and shift over to the fictional world of space adventure.

In his books, Andy Weir (The Martian) works hard to bring scientific accuracy to his fiction. The challenge is balancing the demands of a thrilling story with the science that grounds it in reality.

How did he do? Experts weigh in.

How plausible is ‘Project Hail Mary’? Experts have thoughts

While “Project Hail Mary” has its share of explosions and catastrophes, it’s the thinking that’s thrilling. Grace and Rocky must come together, with tools and whiteboards, craft and ingenuity, to solve a seemingly insoluble problem. They make mistakes, but they learn from those mistakes and from each other.

And an astrophysicist also has thoughts:

Project Hail Mary is packed with hard science. An astrophysicist breaks it down

… when I walked out of a recent preview screening of the film adaptation of Andy Weir’s 2021 science fiction novel Project Hail Mary, I had tears of joy in my eyes. The filmmakers had done justice not just to the original story, but also to the science at the heart of it.

From NASA, with lots of interesting subsidiary links: 

The Science Behind ‘Project Hail Mary’ – NASA Science

Let NASA shed some light: Explore the resources below to learn the science facts fueling the science fiction.

(Wait, Tau Ceti was also featured in fiction by Isaac Asimov, Arthur C. Clarke, Frank Herbert, Robert Heinlein, Ursula K. Le Guin, and Kim Stanley Robinson? And was the setting for Barbarella? This planet gets around!)

The final assessment of the science? Not perfect, but good. And precisely accurate or not, this promises to be another very entertaining movie. (I’ve read the book but haven’t seen the film yet. Yes, I am a little behind the curve!)

Since we’re here, how about an article on the movie as a climate parable? (warning, spoilers!)

AMAZE AMAZE AMAZE! Yes, this is an article about Project Hail Mary as climate parable

And what the heck, here’s the movie trailer just for fun.

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