(via Https://www.youtube.com/watch?v=51_TXnerpRE)

Apollo 12 Landing - From Earth to the Moon

Original image by Diana Walker for Time.

how wonderful!

goodbye, Cassini.

Greatest minds in physics playing poker

Happy Martian New Year!

For any planet, a year is the time it takes to make one orbit around the sun. Because Mars is farther away from the sun, it has to travel a greater distance than Earth. It takes Mars about twice as long as it does for Earth to make one circle around the sun…therefore, a year on Mars lasts twice as long.

On May 5, Mars passes solar longitude 0 as the sun crosses the equator on Mars. This is the vernal equinox and was chosen by planetary scientists as the start of a new year.

Mars has four seasons, roughly twice as long as those on Earth, but with more variation given Mars’ eccentric orbit and the fact its orbital speed varies more as a result.

Did you know that there’s a U.S. city named Mars? Mars, PA hosts an annual Mars New Year celebration and we’re participating in this two-day science, technology, engineering and math (STEM) event to inspire young people to pursue innovation and exploration.

More info on Mars, PA: http://www.marsnewyear.com/

Get updated images from the events in Mars, PA here: https://www.flickr.com/photos/nasahqphoto/sets/72157683457751005/

Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com

1. Do Diversify your portfolio of token Muslims. Different Muslim superheroes have different superpowers.

2. Do not assume Arabs = Muslims and Muslims = Arabs. Do not use them interchangeably.

3. Do seek out Muslims who are black and/or white and or other colors. They exist, not all are brown.

4. Do not assume bearded men or covered women are religious Muslims.

5. Do not assume clean shaven men or uncovered women are not religious Muslims.

6. Do talk to more women, who are the majority of Muslim populations.

7. Do more stories about Muslim women not involving hijab or the burqa or honor killing or FGM.

8. Do not use the words “unveil” in your title.

9. Do not assume just because a person claims to represent Muslim communities, he/she does.

10. Do not use fringe Muslims as representatives for diverse Muslim communities. For example, Graeme Wood relied on Anjem Choudary for his infamous “What is ISIS” Atlantic article. Anjem is like the Pastor Jones of Muslim communities.

11. Do not assume all Muslims can talk about Islam.

12. Do have some Muslims talking about Islam. Just like you should have African Americans talking about racism and women talking about feminism and South Asians talking about Bollywood. (NOTE: If your panel on Islam has no Muslims, that is a problem.)

13. Do not assume practicing Muslims support ISIS or Al Qaeda. Unlike Don Lemon, do not ask “Do you support ISIS ..or AQAP or… Taliban?”

14. Do not ask or frame a conversation around the question: “Where are Moderate Muslims? Do they exist? Are they bearded unicorns?”

15. Do use “Moderate Muslim” in your title if you’re intentionally disrupting that simplistic narrative and showing the nuances.

Read the full article.

wow and ow

Watching rain drops hit a puddle or lake is remarkably fascinating. Each drop creates a little cavity in the water surface when it impacts. Large, energetic drops will create a crown-shaped splash, like the ones in the upper animation. When the cavity below the surface collapses, the water rebounds into a pillar known as a Worthington jet. Look carefully and you’ll see some of those jets are energetic enough to produce a little satellite droplet that falls back and coalesces. Altogether it’s a beautifully complex process to watch happen over and over again. (Image credit: K. Weiner, source)

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Help us do some science! I’ve teamed up with researcher Paige Brown Jarreau to create a survey of FYFD readers. By participating, you’ll be helping me improve FYFD and contributing to novel academic research on the readers of science blogs. It should only take 10-15 minutes to complete. You can find the survey here.

As dangerous as explosions are in air, they are even more destructive in water. Because air is a compressible fluid, some part of an explosion’s energy is directed into air compression. Water, on the other hand, is incompressible, which makes it an excellent conductor of shock waves. In the video above we see some simple underwater explosions using water bottles filled with dry ice or liquid nitrogen. The explosions pulsate after detonation due to the interplay between the expanding gases and the surrounding water. When the gases expand too quickly, the water pressure is able to compress the gases back down. When the water pushes too far, the gases re-expand and the cycle repeats until the explosion’s energy is expended. This pulsating change in pressure is part of what makes underwater explosions so dangerous, especially to humans. Note in the video how the balloons ripple and distort due to the changing pressure. Those same changes in pressure can cause major internal damage to people. (Video credit: The Backyard Scientist; submitted by logicalamaze)