APOD - Star Trails for a Red Planet

Astronomy Picture of the Day

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

2019 November 30

Star Trails for a Red Planet
Image Credit & Copyright: Dengyi Huang

Explanation: Does Mars have a north star? In long exposures of Earth's night sky, star trails make concentric arcs around the north celestial pole, the direction of our fair planet's axis of rotation. Bright star Polaris is presently the Earth's North Star, close on the sky to Earth's north celestial pole. But long exposures on Mars show star trails too, concentric arcs about a celestial pole determined by Mars' axis of rotation. Tilted like planet Earth's, the martian axis of rotation points in a different direction in space though. It points to a place on the sky between stars in Cygnus and Cepheus with no bright star comparable to Earth's north star Polaris nearby. So even though this ruddy, weathered landscape is remarkably reminiscent of terrain in images from the martian surface, the view must be from planet Earth, with north star Polaris near the center of concentric star trails. The landforms in the foreground are found in Qinghai Province in northwestern China.

Tomorrow's picture: blue starburst

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)
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NPR Music Gives Thanks

Here's what we're thankful for this year.

by Marissa Lorusso and Lyndsey McKenna DNY59/Getty Images For this week’s newsletter, in honor of Thanksgiving, we wanted to celebrate the music and musicians that mean the most to us. So we asked our colleagues to share a sentence or two about the songs, performers and moments that have filled them with gratitude this year. Here’s to hoping that your holiday is a respite from the day-to-day and a chance to give thanks with the ones you hold dear. Pass the stuffing, Marissa Lorusso & Lyndsey McKenna Newsletter continues after sponsor message Bob Boilen, All Songs Considered: I’m watching a video of Tiny Desk Contest winner Gaelynn Lea playing on stage with Wilco — I feel so grateful for this platform that positively alters the lives of musicians and listeners. One moment, Gaelynn Lea is playing violin in her kitchen; now she travels globally, advocates for disability rights and joins Wilco on stage. The world is a better place for it, I think — and I’m humbled and forever grateful. Ann Powers, critic and correspondent: I’m grateful for the renewed health of Joni Mitchell, who’s returned as a blessed presence in our lives via all those photos of her out and about in her finery. Tom Huizenga, NPR Classical: A career highpoint, I'm grateful for having interviewed the amazing Jessye Norman, who died suddenly in September. Zoe Jones, NPR Music intern: I'm grateful for the new Harry Styles album that's coming out very soon! Cyrena Touros, assistant editor: I am grateful for Sharon Van Etten's primal roar on "Seventeen": It has brought me back to my body many times this year and reminds me that it's possible to respect our younger selves while acknowledging that we are not always the sole masters of change in our lives. Mano Sundaresan, NPR Music intern: I'm grateful for being able to spin around in my chair to see a Tiny Desk concert every couple days and for the folks here who have made my internship so fulfilling. Marissa Lorusso, NPR Music & Events: I’m grateful that our 2017 Tiny Desk Contest winner, Tank and the Bangas, was nominated for a Grammy Award for best new artist! The band is full of incredibly talented, kind, hard-working people and it’s an honor to have been part of their journey. Lyndsey McKenna, assistant editor: Every week, Marissa and I have a standing meeting to write the NPR Music newsletter. For us, it’s a chance to take in everything our team here has worked on for weeks, even months. It’s a joy to take in my colleagues’ knowledge and passion and to deliver that to such engaged and informed readers. Robin Hilton, All Songs Considered: I'm grateful to be above ground, breathing in the glorious light of humanity before the sun expands and swallows our entire solar system. Mhari Shaw/NPR P.S. Need something the whole family can agree on? We suggest Carly Rae Jepsen’s Tiny Desk concert.  What do you think of today's email? We'd love to hear your thoughts, questions and feedback: nprmusic@npr.org Enjoying this newsletter? Forward to a friend! They can sign up here. Looking for more great content? Check out all of our newsletter offerings — including Books, Pop Culture, Health and more! Need a new playlist? Follow NPR Music on Spotify and Apple Music! You received this message because you're subscribed to NPR Music emails. This email was sent by National Public Radio, Inc., 1111 North Capitol Street NE, Washington, DC 20002 Unsubscribe  |  Privacy Policy

APOD - Galileo's Europa Remastered

Astronomy Picture of the Day

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

2019 November 29

Galileo's Europa Remastered
Image Credit: NASA, JPL-Caltech, SETI Institute, Cynthia Phillips, Marty Valenti

Explanation: Looping through the Jovian system in the late 1990s, the Galileo spacecraft recorded stunning views of Europa and uncovered evidence that the moon's icy surface likely hides a deep, global ocean. Galileo's Europa image data has been remastered here, using improved new calibrations to produce a color image approximating what the human eye might see. Europa's long curving fractures hint at the subsurface liquid water. The tidal flexing the large moon experiences in its elliptical orbit around Jupiter supplies the energy to keep the ocean liquid. But more tantalizing is the possibility that even in the absence of sunlight that process could also supply the energy to support life, making Europa one of the best places to look for life beyond Earth. What kind of life could thrive in a deep, dark, subsurface ocean? Consider planet Earth's own extreme shrimp.

Tomorrow's picture: red planet star trails

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)
NASA Official: Phillip Newman Specific rights apply.
NASA Web Privacy Policy and Important Notices
A service of: ASD at NASA / GSFC
& Michigan Tech. U.

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Save 20% on NPR gifts they won’t regift.

So many ways to give the gift of NPR.

So many ways to give the gift of NPR. Save 20% on your entire order, now through Monday. Enter code NPRSAVE20. EVEN MORE GIFTS THEY WON'T REGIFT, ALL AT 20% OFF!   You received this message because you're subscribed to Best of NPR emails. This email was sent by National Public Radio, Inc., 1111 North Capitol Street NE, Washington, DC 20002 Unsubscribe  |  Privacy Policy

Trump Announces Resumption Of Talks With Taliban During Surprise Visit To Afghanistan

"The Taliban wants to make a deal," the president said during his trip to Bagram Air Field, where he met with U.S. troops. "If they do, they do, and if they don't, they don't. That's fine."

Trump Announces Resumption Of Talks With Taliban During Surprise Visit To Afghanistan "The Taliban wants to make a deal," the president said during his trip to Bagram Air Field, where he met with U.S. troops. "If they do, they do, and if they don't, they don't. That's fine." Read More You received this message because you're subscribed to Breaking News Alerts emails. This email was sent by National Public Radio, Inc., 1111 North Capitol Street NE, Washington, DC 20002 Unsubscribe  |  Privacy Policy

APOD - Moon and Planets at Twilight

Astronomy Picture of the Day

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

2019 November 28

Moon and Planets at Twilight
Image Credit & Copyright: Petr Horálek

Explanation: This week's ongoing conjunction of Venus and Jupiter may have whetted your appetite for skygazing. Tonight is the main course though. On November 28, a young crescent Moon will join them posing next to the two bright planets above the western horizon at twilight. Much like tonight's visual feast, this night skyscape shows a young lunar crescent and brilliant Venus in the western evening twilight on October 29. The celestial beacons are setting over distant mountains and the Minya monastery, Ganzi Tibetan Autonomous Prefecture, Sichuan, China, planet Earth. Then Mercury, not Jupiter, was a celestial companion to Venus and the Moon. The fleeting innermost planet is just visible here in the bright twilight, below and left of Venus and near the center of the frame. Tomorrow, November 29, the crescent Moon will also help you spot planet Saturn for desert.

Tomorrow's picture: extreme shrimp cocktails

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)
NASA Official: Phillip Newman Specific rights apply.
NASA Web Privacy Policy and Important Notices
A service of: ASD at NASA / GSFC
& Michigan Tech. U.

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APOD - Hoag's Object: A Nearly Perfect Ring Galaxy

Astronomy Picture of the Day

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

2019 November 27

Hoag's Object: A Nearly Perfect Ring Galaxy
Image Credit: NASA, ESA, Hubble; Processing: Benoit Blanco

Explanation: Is this one galaxy or two? This question came to light in 1950 when astronomer Arthur Hoag chanced upon this unusual extragalactic object. On the outside is a ring dominated by bright blue stars, while near the center lies a ball of much redder stars that are likely much older. Between the two is a gap that appears almost completely dark. How Hoag's Object formed, including its nearly perfectly round ring of stars and gas, remains unknown. Genesis hypotheses include a galaxy collision billions of years ago and the gravitational effect of a central bar that has since vanished. The featured photo was taken by the Hubble Space Telescope and recently reprocessed using an artificially intelligent de-noising algorithm. Observations in radio waves indicate that Hoag's Object has not accreted a smaller galaxy in the past billion years. Hoag's Object spans about 100,000 light years and lies about 600 million light years away toward the constellation of the Snake (Serpens). Many galaxies far in the distance are visible toward the right, while coincidentally, visible in the gap at about seven o'clock, is another but more distant ring galaxy.

Tomorrow's picture: open space

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)
NASA Official: Phillip Newman Specific rights apply.
NASA Web Privacy Policy and Important Notices
A service of: ASD at NASA / GSFC
& Michigan Tech. U.

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Measuring your middle. Fish oil facts. Neti pot how-tos.

The size of your waist can reveal your risk of diabetes and heart disease. Learn the right way to measure yours and why it's important.

What Your Waist Measurement Says About Your Health The size of your waist can reveal your risk of diabetes and heart disease. Learn the right way to measure yours and why it's important. Read on 13 Reasons to Make Fish Oil Your Favorite Supplement The omega-3s in fish oil can help reduce inflammation, improve depression symptoms, maintain brain health, and more. READ ON Got a Cold? Here's When You'll Start Feeling Better Here's how to spot cold symptoms early so you can get started on self-care tips as your body works to rid itself of the virus. READ ON ASK OUR Psychologist Q: Is menopause making me more anxious? A friend told me that this could be caused by low estrogen levels. What's the link? Get the answer Relieve Sinus Symptoms with a Neti Pot Have you ever tried a neti pot? See why this centuries-old natural remedy for sinus pain, irritation, and headaches has so many fans. READ ON More Top Reads ADVERTISEMENT Find Medicare coverage that works for you! Research, compare and enroll in Medicare insurance plans online. Compare plans today ADVERTISEMENT Find Medicare coverage that works for you! Research, compare and enroll in Medicare insurance plans online. Compare plans today Follow Us View in browser Did a friend send you this email? Subscribe here. To see all newsletters, click here. Privacy Policy|Unsubscribe © 2019 Healthline Media 660 3rd Street, San Francisco, CA 94107