Craziest eclipses in the solar system

By: Physics Girl

Originally published on Aug 10, 2017

A total solar eclipse is passing across North America on August 21, 2017. Are there other total solar eclipses in the solar system? Get your first two months of CuriosityStream free by going to http://curiositystream.com/physicsgirl and using the promo code “physicsgirl”

Do Mars moons, or Jupiter moons causes total solar eclipses?

Difference between a solar and lunar eclipse:
https://www.youtube.com/watch?v=rVE8P…

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Creator: Dianna Cowern
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Sources:
http://curious.astro.cornell.edu/abou…
https://www.nasa.gov/centers/goddard/…
https://saturn.jpl.nasa.gov/galleries…

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How NASA pulled off the Pluto flyby

 

By: The Verge

Originally published on Jun 6, 2016

Nearly a year ago, NASA’s New Horizons spacecraft flew by Pluto, marking the first time a vehicle had visited the dwarf planet. Alan Stern, principal investigator of the New Horizons mission, sat down with The Verge to discuss how the engineering team pulled off the mission and what we’ve learned from the flyby so far.

Related videos:
Video-chatting with astronauts: https://www.youtube.com/watch?v=VjoBh…
Stephen Hawking’s Starshot, explained: https://www.youtube.com/watch?v=hNnuC…

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New Horizons’ Extreme Close-Up of Pluto’s Surface (no audio)

 

By: NASA.gov Video

Published on May 27, 2016

This is the most detailed view of Pluto’s terrain you’ll see for a very long time. This mosaic strip – extending across the hemisphere that faced the New Horizons spacecraft as it flew past Pluto on July 14, 2015 – now includes all of the highest-resolution images taken by the NASA probe. With a resolution of about 260 feet (80 meters) per pixel, the mosaic affords New Horizons scientists and the public the best opportunity to examine the fine details of the various types of terrain on Pluto, and determine the processes that formed and shaped them.

The width of the strip ranges from more than 55 miles (90 kilometers) at its northern end to about 45 miles (75 kilometers) at its southern point. The pictures in the mosaic were obtained by New Horizons’ Long Range Reconnaissance Imager (LORRI) approximately 9,850 miles (15,850 kilometers) from Pluto, shortly before New Horizons’ closest approach.

Note: Video is silent/no audio.

Credits: NASA/JHUAPL/SwRI

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New Pluto ‘Aerial Tour’ Created From Probe Images

 

By: VideoFromSpace

Originally published on Sep 18, 2015

Images from the NASA New Horizons probe’s September 11th, 2015 download were “stitched together and rendered on a sphere” by the mission team. It starts with a fly-over of the Norgay Montes and rides north above the boundary of Sputnik Planum and the Cthulhu Regio and then moves east. — See Pluto’s ‘Ice-scapes’ In A New Light: http://goo.gl/uicCfP

Credit: NASA/JHUAPL/SwRI, Stuart Robbins/mash mix: Space.com

 

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Realistic Pluto Fly-By Animation Created From Photos, Trajectory Data | Video

 

By: VideoFromSpace

Originally published on Aug 28, 2015

Stuart Robbins helped plan the New Horizons’ mission as a post-doc student at the Southwest Research Institute. He “strived from realism” when he plotted the Pluto system with his 3D software and “attached a camera” to the trajectory data.

Credit: Stuart Robbins/NASA/JHUAPL/SWRI
Music: “Sail The Horizon” by Aaron Sapp

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New Horizons Pluto Fly-by from Bjorn Jonsson

New Horizons Pluto flyby from Bjorn Jonsson on Vimeo.

An animation showing the New Horizons Pluto flyby on July 14, 2015. The time covered is 09:35 to 13:35 (closest approach occurred near 11:50). Pluto’s atmosphere is included and should be fairly realistic from about 10 seconds into the animation and to the end. Earlier it is largely just guesswork that can be improved in the future once all data has been downlinked from the spacecraft. Light from Pluto’s satellite Charon illuminates Pluto’s night side but is exaggerated here, in reality it would be only barely visible or not visible at all. The field of view is 12.5 degrees.

Source mages: NASA/JHU-APL/SwRI
Image processing and animation: Björn Jónsson

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What Has New Horizons Taught Us About Pluto?

 

By: It’s Okay To Be Smart

Originally published on Aug 11, 2015

Pluto’s not just cool… it’s ICE COLD
Tweet ⇒ http://bit.ly/OKTBSpluto Share on FB ⇒ http://bit.ly/OKTBSplutoFB

Since New Horizons flew by Pluto on July 14, 2015, it’s completely redefined what we know about the dwarf planet and its largest moon Charon. New Horizons’ mission will continue to be full of surprises, but here’s what we’ve learned so far.

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Unless otherwise noted, all images and animations courtesy of NASA/JHUAPL/SwRI

MORE NEW HORIZONS STUFF:
Calculate your Pluto time: http://solarsystem.nasa.gov/plutotime/
New Horizons image gallery: https://www.nasa.gov/mission_pages/ne…
Planetary Society New Horizons news: http://www.planetary.org/blogs/blog-a…
Nadia Drake’s excellent New Horizons coverage: http://phenomena.nationalgeographic.c…
Pluto and Charon are weird: http://news.nationalgeographic.com/20…
What kind of ices are on Pluto? http://space.io9.com/the-ice-of-pluto…
Pluto’s hazy atmosphere: https://www.nasa.gov/press-release/na…
Geologic features of Pluto and Charon: http://space.io9.com/were-actively-cr…
What are tholins? Why Pluto looks red: http://www.planetary.org/blogs/guest-…
Pluto’s other moons, Nix and Hydra: http://www.nasa.gov/image-feature/new…
Pluto’s family portrait: http://www.planetary.org/multimedia/s…
Dwarf planets of the solar system: http://www.space.com/18584-dwarf-plan…
Catalog of unusual “minor planet objects” in solar system: http://www.minorplanetcenter.net/iau/…

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Animated Flyover of Pluto’s Icy Mountain and Plains

 

By: NASA.gov Video

Originally published on Jul 17, 2015

This simulated flyover of Pluto’s Norgay Montes (Norgay Mountains) and Sputnik Planum (Sputnik Plain) was created from New Horizons closest-approach images. Norgay Montes have been informally named for Tenzing Norgay, one of the first two humans to reach the summit of Mount Everest. Sputnik Planum is informally named for Earth’s first artificial satellite. The images were acquired by the Long Range Reconnaissance Imager (LORRI) on July 14 from a distance of 48,000 miles (77,000 kilometers). Features as small as a half-mile (1 kilometer) across are visible. Credit: NASA/JHUAPL/SWRI

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Pluto at center of universe — for a day

 

By: CBS Evening News

Originally published on Jul 15, 2015

NASA released highly anticipated new images of Pluto and its moon. CBS News correspondent Chip Reid explains the significance behind the New Horizons mission.

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Pluto in a Minute: How Did New Horizons Phone Home?

 

By: NASA New Horizons

Originally published on Jul 15, 2015

New Horizons phoned home! But how exactly does a spacecraft talk to us from 3 billion miles away? This is Pluto in a Minute.

After being silent for nearly 22 hours on July 14, as planned, New Horizons did send a status report back to the mission team to let them know that the spacecraft was ok. But how does a signal travel to Earth from Pluto and how long does it take?

New Horizons sends and receives data on radio waves, which are the waves on the long end of the electromagnetic spectrum. Because they’re on the electromagnetic spectrum, radio waves travel at the speed of light. It takes sunlight about 8.3 minutes to travel 1 astronomical unit or 1 AU, that is, the distance between the Sun and the Earth. Pluto is currently about 32 AU from Earth, so 32 times 8.3 is about 265 (minutes). So the one way light time delay for the mission team to talk to New Horizons is about 4 and a half hours each way.

The signal left the spacecraft at about 4:27 in the afternoon on July 14. Traveling at the speed of light, that phone home signal crossed Neptune’s orbit about 25 minutes later. Then the signal traveled about hour and 28 minutes before crossing Uranus’ orbit. The signal reached Saturn’s orbit about hour and 28 minutes later, and then crossed Jupiter’s orbit another 28 minutes after that. Then an additional 33 minutes for the signal to reach Mars’ orbit, and then 7 minutes for it to go from Mars to the Earth.

And in the time that it just took me to explain exactly when that phone home signal crossed the planets’ orbits, a signal from or to New Horizons would not have moved very much at all.

For more on Pluto be sure to check out the New Horizons websites and also tweet your questions using the hashtag #PlutoFlyby. And of course, come back tomorrow for more Pluto in a Minute.

http://www.nasa.gov/newhorizons
http://pluto.jhuapl.edu

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