Recent comments in /f/space

Waddensky t1_j6cz3ub wrote

Constellations are a human invention, but yes, the Sun would appear in the night sky just like any other star as seen from an exoplanet, provided it's close enough to be seen with the naked eye.

From a planet orbiting one of the stars of Alpha Centauri, the Sun is close to the bright stars of Cassiopeia. From Barnard's Star, the Sun aligns nicely with the belt of Orion.

Here are a few more, including charts! https://skyandtelescope.org/astronomy-blogs/explore-night-bob-king/see-the-sun-from-other-stars/

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CTWFO t1_j6cyz2b wrote

I was buying a sleeve of vanilla cookies and a coke at the ROTC room before wood shop and remember everyone getting excited for the launch. The broadcast was playing on the TV hanging on the wall. It happened just before the bell rang! So sad!

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Owain451 t1_j6cxf8f wrote

All the comments about stars and sex ads are really funny, but I didn't see anyone bring this up so I will.

I was pretty disappointed to learn most photos of space that show off a c9lorful cosmos are edited or enhanced to allow us to see those colors. They aren't natural because our eyes cannot detect the visible spectrum (I think) on which the things in this photo exist. I might have the exact reason wrong but you get the general idea.

If we were actually out in space, it would be a lot of darkness, grey clouds and masses, with indistinct lumps everywhere.

It would not be a pretty LSD trip like every source of media from the beginning of the space race has taught us to believe.

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barrycarter t1_j6cwl75 wrote

I like potato-shaped :) because of the potato radius (https://www.technologyreview.com/2010/04/12/27697/potato-radius-to-define-dwarf-planets/). In the CSPICE computational libraries (https://naif.jpl.nasa.gov/naif/aboutspice.html), all bodies are modeled as "potatoes", or, formally, triaxial ellipsoids.

EDIT: the numbers I have say the triaxial diameters are 360.2 km × 266.0 km × 205.4 km

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Hola0722 t1_j6cwb9e wrote

I grew up in PA. I was in 3rd grade and was at home because I was sick. I was laying on the couch in front of the TV. My mother had the the TV on to watch the event. I remember the replay of the explosion and my mother crying.

I went into school the next day. When prayers started for the tragedy, I started crying. I was the only one in my class that saw the explosion because I was sick at home.

As an adult I lived in FL. In the town I lived, a school was named Christa McAuliffe. The memories came flooding back when I heard the name in conversation.

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aeshnidae1701 t1_j6cv0eq wrote

I had just turned 10 and just figured out how to attend Space Camp during the upcoming summer (it took a lot of phone calls and waiting for stuff in through mail back then). We watched in my school's library, Peter Jennings on ABC News. Most of us (kids and teachers) were too shocked to cry. I wound up going to Space Camp 6 months later, as planned. I still have my Space Camp wings, cap, certificate, and flight suit, as well as the bronze commemorative Challenger coin I bought there, "Reaching for the Stars."

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pope_hilarious t1_j6ctwik wrote

Nope. The crew compartment was separated from the vehicle in the explosion. In the wreckage investigation, it was found that some of their emergency oxygen were used, and the amount of oxygen found missing in those tanks is consistent with the amount of time until the compartment landed.

You can draw your own conclusions from this carefully worded article but it seems pretty clear that at least some of the crew had a bad last couple of minutes.

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