The Face on Mars

APOD: 2021 July 4 - The Face on Mars Discover the cosmos!Each day a different image or photograph of our fascinating universe isfeatured, along with a brief explanation written by a professional astronomer. 2021 July 4 The Face on Mars Image Credit: NASA, Viking 1 Orbiter Explanation: Wouldn't it be fun if clouds were castles? Wouldn't it be fun if the laundry on the bedroom chair was a superhero? Wouldn't it be fun if rock mesas on Mars were interplanetary monuments to the human face? Clouds, though, are floating droplets of water and ice. Laundry is cotton, wool, or plastic, woven into garments. Famous Martian rock mesas known by names like the Face on Mars appear quite natural when seen more clearly on better images. Is reality boring?Nobody knows why some clouds make rain. Nobody knows if life ever developed on Mars. Nobody knows why the laundry on the bedroom chair smells like root beer. Scientific exploration can not only resolve mysteries, but uncover new knowledge, greater mysteries, and yet deeper questions. As humanity explores our universe, perhaps fun -- through discovery -- is just beginning. Tomorrow's picture: horse of blue <| Archive| Submissions | Index| Search| Calendar| RSS| Education| About...
Continue reading
  521 Hits
521 Hits

Along the Milky Way

APOD: 2021 July 3 - Along the Milky Way Discover the cosmos!Each day a different image or photograph of our fascinating universe isfeatured, along with a brief explanation written by a professional astronomer. 2021 July 3 Along the Milky Way Image Credit &Copyright:Rolf Weisenfeld Explanation: You can'twalk along the Milky Way.Still, under a dark skyyou can explore it.To the eye the pale luminous trail of light arcingthrough the sky on a dark, moonless night does appear to bea path through the heavens.The glowing celestial band is the faint,collectivelight of distant starscut by swaths of obscuring interstellar dust clouds.It lies along the plane ofour home galaxy,so named because it looks like a milky way.Since Galileo's time, the Milky Way has been revealedto telescopic skygazers to be filled withcongeries of innumerable starsandcosmic wonders. Tomorrow's picture: Facing Mars<| Archive| Submissions | Index| Search| Calendar| RSS| Education| About APOD| Discuss| > Authors & editors: Robert Nemiroff(MTU) &Jerry Bonnell (UMCP)NASA Official: Phillip NewmanSpecific rights apply.NASA WebPrivacy Policy and Important NoticesA service of:ASD atNASA /GSFC& Michigan Tech. U.
  357 Hits
357 Hits

AR2835: Islands in the Photosphere

APOD: 2021 July 2 - AR2835: Islands in the Photosphere Discover the cosmos!Each day a different image or photograph of our fascinating universe isfeatured, along with a brief explanation written by a professional astronomer. 2021 July 2 AR2835: Islands in the Photosphere Image Credit &Copyright:MichaelTeoh,Heng Ee Observatory, Penang, Malaysia Explanation: Awash in a sea ofincandescent plasmaand anchored in strongmagnetic fields,sunspots are planet-sized dark islands inthe solar photosphere,the bright surface of the Sun.Found in solar active regions, sunspots lookdarkonly because they are slightly cooler though,with temperatures of about 4,000kelvinscompared to 6,000 kelvins for the surrounding solar surface.These sunspots lie in active region AR2835.The largest active regionnow crossing the Sun,AR2835 is captured in this sharp telescopic close-up from July 1in a field of view that spans about 150,000 kilometersor over ten Earth diameters.With powerful magnetic fields,solar active regionsare often responsible for solar flares and coronal mass ejections, storms which affectspace weathernearplanet Earth. Tomorrow's picture: Got telescope?<| Archive| Submissions | Index| Search| Calendar| RSS| Education| About APOD| Discuss| > Authors & editors: Robert Nemiroff(MTU) &Jerry Bonnell (UMCP)NASA Official: Phillip NewmanSpecific rights apply.NASA WebPrivacy Policy and Important NoticesA service of:ASD atNASA /GSFC& Michigan Tech. U.
  426 Hits
426 Hits

Perseverance Selfie with Ingenuity

APOD: 2021 July 1 - Perseverance Selfie with Ingenuity Discover the cosmos!Each day a different image or photograph of our fascinating universe isfeatured, along with a brief explanation written by a professional astronomer. 2021 July 1 Perseverance Selfie with Ingenuity Image Credit: NASA,JPL-Caltech,MSSS Explanation: On sol 46 (April 6, 2021) the Perseverance rover held out arobotic arm to takeits first selfie on Mars.The WATSON camera at the end of the armwas designed to take close-ups of martian rocks andsurface details though, and not a quick snap shot of friends andsmiling faces.In the end,teamworkand weeks of planning on Mars timewas required to program a complex series ofexposures and camera motions to include Perseverance and itssurroundings.The resulting 62 frames were composed into a detailed mosiac,one of the most complicated Mars rover selfies ever taken.In this version of theselfie, the rover'sMastcam-Z and SuperCam instruments are lookingtoward WATSON and the end of the rover's outstretched arm.About 4 meters (13 feet) from Perseverance is a robotic companion,the Mars Ingenuity helicopter. Tomorrow's picture: pixels in space<| Archive| Submissions | Index| Search| Calendar| RSS| Education| About APOD| Discuss| > Authors & editors: Robert Nemiroff(MTU) &Jerry Bonnell (UMCP)NASA Official: Phillip NewmanSpecific rights apply.NASA WebPrivacy Policy and Important NoticesA service...
Continue reading
  279 Hits
279 Hits

Simulation: Formation of the First Stars

APOD: 2021 June 30 - Simulation: Formation of the First Stars Discover the cosmos!Each day a different image or photograph of our fascinating universe isfeatured, along with a brief explanation written by a professional astronomer. Simulation: Formation of the First Stars Video Credit: Harley Katz (U. Oxford) et al. Explanation: How did the first stars form?To help find out, the SPHINX computer simulation of star formation in the very early universe was created, some results of which are shown in the featured video.Time since the Big Bang is shown in millions of years on the upper left. Even 100 million years after the Big Bang, matter was spread too uniformly across the cosmos for stars to be born. Besides background radiation, the universe was dark.Soon, slight matter clumps rich in hydrogen gas begin to coalesce into the first stars.In the time-lapse video, purple denotes gas, white denotes light, and gold shows radiation so energetic that it ionizes hydrogen, breaking it up into charged electrons and protons. The gold-colored regions also track the most massive stars that die with powerful supernovas.The inset circle highlights a central region that is becoming a galaxy. The simulation continues until the universe was about 550 million...
Continue reading
  280 Hits
280 Hits

The Daily Facepalm

And when I correct them, I'm the bad guy?!
  314 Hits
314 Hits

Orion Nebula: The Hubble View

APOD: 2021 June 29 - Orion Nebula: The Hubble View Discover the cosmos!Each day a different image or photograph of our fascinating universe isfeatured, along with a brief explanation written by a professional astronomer. 2021 June 29 Orion Nebula: The Hubble View Image Credit: NASA, ESA, Hubble Legacy Archive; Processing: Francisco Javier Pobes Serrano Explanation: Few cosmic vistas excite the imagination likethe Orion Nebula.Also known asM42,the nebula's glowing gas surrounds hot young stars at the edge of animmense interstellarmolecular cloud only 1,500 light-years away.The Orion Nebula offers one of the best opportunities to study how stars are born partly because it is the nearest largestar-forming region,but also because the nebula'senergetic stars have blown away obscuring gas and dust clouds that would otherwise block our view - providing an intimate look at a range of ongoing stagesof starbirth and evolution.The featured image of theOrion Nebula is among the sharpest ever, constructed using data from theHubble Space Telescope. The entire Orion Nebula spans about 40 light years and is located in the same spiral arm of our Galaxy as the Sun. Tomorrow's picture: first stars <| Archive| Submissions | Index| Search| Calendar| RSS| Education| About APOD| Discuss| > Authors & editors: Robert Nemiroff(MTU)...
Continue reading
  197 Hits
197 Hits

A Paper Moon Solar Eclipse

APOD: 2021 June 28 - A Paper Moon Solar Eclipse Discover the cosmos!Each day a different image or photograph of our fascinating universe isfeatured, along with a brief explanation written by a professional astronomer. 2021 June 28 A Paper Moon Solar Eclipse Image Credit & Copyright: Wang Letian (Eyes at Night) Explanation: It may look like a paper Moon. Sailing past a canvas Sun. But those are not cardboard clouds. And it's not make believe. The featured picture of an orange colored sky is real -- a digital composite of two exposures of the solar eclipse that occurred earlier this month. The first exposure was taken with a regular telescope that captured an overexposed Sun and an underexposed Moon, while the second image was taken with a solar telescope that captured details of the chromosphere of the background Sun.The Sun's canvas-like texture was brought up by imaging in a very specific shade of red emitted by hydrogen. Several prominences can be seen around the Sun's edge. The image was captured just before sunset from Xilingol, Inner Mongolia, China.It's also not make-believe to imagine that the Moon is made of dense rock, the Sun is made of hot gas, and clouds are made...
Continue reading
  203 Hits
203 Hits

The Daily Facepalm

Bacon and eggs takes on a whole new meaning.
  304 Hits
304 Hits

The Daily Facepalm

Let's hear about those summer plans! (And if you're in the other hemisphere... well... sorry :-))
  276 Hits
276 Hits

The Daily Facepalm

Micromanagers are the first up against the wall when the revolution comes! Brought to you by our 2021 Pride Designs! Check 'em out! https://thepride.store 
  258 Hits
258 Hits

The Daily Facepalm

Of course, I can take mine off... I wonder how The Mandalorian copes... Brought to you by our outstanding merch! https://www.concellation.com/store 
  228 Hits
228 Hits

The Daily Facepalm

Not that I'm always right, but I am certainly always entertaining!
  250 Hits
250 Hits

The Daily Facepalm

If you could have ANY career, what would you want to be? Brought to you by our Pride designs at https://thepride.store 
  239 Hits
239 Hits

The Daily Facepalm

Orbits First Law of Cat Mechanics brought to you by some killer shirts at https://the-complete-concellation.creator-spring.com 
  257 Hits
257 Hits

The Daily Facepalm

I just smiled and pretended that I was waving at the other abyss nearby. Remember, 10% off with coupon code SUMMER21 at https://the-complete-concellation.creator-spring.com
  305 Hits
305 Hits

The Daily Facepalm

I hope it's exciting!
  281 Hits
281 Hits

The Daily Facepalm

What's your secret identity? Come on, you can tell, we're amongst friends! PS: Brought to you by our really cool pins (and our new patch)! https://www.concellation.com/store
  262 Hits
262 Hits

The Daily Facepalm

Seems like a legit business opportunity, too! Brought to you by our killer shirts! https://the-complete-concellation.creator-spring.com
  258 Hits
258 Hits

The Daily Facepalm

I guess I should start selling tickets? Maybe a free half hour for every pin you get at https://www.concellation.com/store?
  290 Hits
290 Hits