EarthSky News:
- More evidence for ancient ocean on Mars from Chinese roverby Paul Scott Anderson on November 20, 2024 at 11:33 am
A new analysis of data from China's Zhurong rover supports the existence of an ancient ocean on Mars billions of years ago in the northern hemisphere. The post More evidence for ancient ocean on Mars from Chinese rover first appeared on EarthSky.
- Sun news November 20: Dueling southern prominencesby C. Alex Young on November 20, 2024 at 11:10 am
Sun news November 20, 2024. Solar flare activity drops back to low as two prominences duel near the southern solar pole. Will they erupt? The post Sun news November 20: Dueling southern prominences first appeared on EarthSky.
- How to see Earth’s shadow at sunrise and sunsetby Deborah Byrd on November 20, 2024 at 11:00 am
Just before sunrise and after sunset, you can spot Earth's shadow. Look west at sunrise and east at sunset. Learn more about Earth's shadow here. The post How to see Earth’s shadow at sunrise and sunset first appeared on EarthSky.
- A mystery mollusk sea slug in the deep oceanby Shireen Gonzaga on November 20, 2024 at 9:45 am
After 20 years of research, scientists have identified and named a new species of sea slug that lives in the deep ocean. They called it Bathydevius caudactylus. The post A mystery mollusk sea slug in the deep ocean first appeared on EarthSky.
Universe Today:
- How Could Astronauts Call for Help from the Moon?by Mark Thompson on November 21, 2024 at 12:43 am
Exploring the Moon poses significant risks, with its extreme environment and hazardous terrain presenting numerous challenges. In the event of a major accident, assistance might take days or even weeks to arrive. To address this, Australian researchers have created a distress alert system based upon the COSPAS-SARSAT technology used for Earth-based search and rescue operations. … Continue reading "How Could Astronauts Call for Help from the Moon?" The post How Could Astronauts Call for Help from the Moon? appeared first on Universe Today.
- There Was a 15 Minute Warning Before Tonga Volcano Explodedby Mark Thompson on November 21, 2024 at 12:04 am
Volcanoes are not restricted to the land, there are many undersea versions. One such undersea volcano known as Hunga Tonga-Hunga Ha’apai off the coast of Tonga. On 15th January 2022, it underwent an eruption which was one of the most powerful in recent memory. A recent paper shows that seismic waves were released 15 minutes … Continue reading "There Was a 15 Minute Warning Before Tonga Volcano Exploded" The post There Was a 15 Minute Warning Before Tonga Volcano Exploded appeared first on Universe Today.
- Main Sequence and White Dwarf Binaries are Hiding in Plain Sightby Evan Gough on November 20, 2024 at 10:44 pm
Some binary stars are unusual. They contain a main sequence star like our Sun, while the other is a “dead” white dwarf star that left fusion behind and emanates only residual heat. When the main sequence star ages into a red giant, the two stars share a common envelope. This common envelope phase is a … Continue reading "Main Sequence and White Dwarf Binaries are Hiding in Plain Sight" The post Main Sequence and White Dwarf Binaries are Hiding in Plain Sight appeared first on Universe Today.
APOD: Astronomy Picture of the Day:
- Earthset from Orionon November 21, 2024 at 12:23 am
Earthset from Orion
- Post Titleon November 21, 2024 at 12:23 am
What's happening with these clouds?
- Post Titleon November 21, 2024 at 12:23 am
Stars can create huge and intricate
NASA Breaking News:
- Sols 4368-4369: The Colors of Fall – and Marson November 21, 2024 at 2:16 am
Earth planning date: Monday, Nov. 18, 2024 I am in the U.K., where we are approaching the time when trees are just branches and twigs. One tree that still has its full foliage is my little quince tree in my front garden. Its leaves have turned reddish-brown with a hint of orange, fairly dark by
- NASA, SpaceX Illustrate Key Moments of Artemis Lunar Lander Missionby Lee Mohon on November 20, 2024 at 9:37 pm
NASA is working with U.S. industry to develop the human landing systems that will safely carry astronauts from lunar orbit to the surface of the Moon and back throughout the agency’s Artemis campaign. For Artemis III, the first crewed return to the lunar surface in over 50 years, NASA is working with SpaceX to develop
- STS-129 Crew Aboard the Space Stationby Monika Luabeya on November 20, 2024 at 9:07 pm
The STS-129 crew members pose for a portrait following a joint news conference with the Expedition 21 crew members on Nov. 24, 2009. Astronauts Charles O. Hobaugh, Mike Foreman, Leland Melvin, Robert L. Satcher Jr., Randy Bresnik, Butch Wilmore, and Nicole Stott launched from NASA’s Kennedy Space Center in Florida on Nov. 16, 2009, aboard
- Media Invited to Learn About NASA, GE Aerospace Contrails Flight Testsby Angelique Herring on November 20, 2024 at 8:01 pm
Media are invited to learn about a unique series of flight tests happening in Virginia in partnership between NASA and GE Aerospace that aim to help the aviation industry better understand contrails and their impact on the Earth’s climate. Contrails are the lines of clouds that can be created by high-flying aircraft, but they may
- NASA’s Chandra, Hubble Tune Into ‘Flame-Throwing’ Guitar Nebulaby Lee Mohon on November 20, 2024 at 6:57 pm
Normally found only in heavy metal bands or certain post-apocalyptic films, a “flame-throwing guitar” has now been spotted moving through space. Astronomers have captured movies of this extreme cosmic object using NASA’s Chandra X-ray Observatory and Hubble Space Telescope. The new movie of Chandra (red) and Palomar (blue) data helps break down what is playing
Space Station News:
- STS-129 Crew Aboard the Space Stationby Monika Luabeya on November 20, 2024 at 9:07 pm
The STS-129 crew members pose for a portrait following a joint news conference with the Expedition 21 crew members on Nov. 24, 2009. Astronauts Charles O. Hobaugh, Mike Foreman, Leland Melvin, Robert L. Satcher Jr., Randy Bresnik, Butch Wilmore, and Nicole Stott launched from NASA’s Kennedy Space Center in Florida on Nov. 16, 2009, aboard
- Shooting for the Stars: NASA Lights Up the Court at Toyota Center by Sumer Loggins on November 20, 2024 at 5:08 pm
On Nov. 6, 2024, NASA Night brought cosmic excitement to the Toyota Center, where Johnson Space Center employees joined 16,208 fans who interacted with NASA as they watched the Houston Rockets claim victory over the San Antonio Spurs. Energy soared as International Space Station Program Manager Dana Weigel stepped up to take the first shot.
- NASA to Provide Coverage of Progress 90 Launch, Space Station Dockingby Jessica Taveau on November 18, 2024 at 8:09 pm
NASA will provide live launch and docking coverage of a Roscosmos cargo spacecraft delivering nearly three tons of food, fuel, and supplies to the Expedition 72 crew aboard the International Space Station. The unpiloted Progress 90 spacecraft is scheduled to launch at 7:22 a.m. EST (5:22 p.m. Baikonur time) Thursday, Nov. 21, on a Soyuz
NASA Universe:
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Sky & Telescope Observing News:
- This Week's Sky at a Glance, November 15 – 24by Alan MacRobert on November 15, 2024 at 10:19 am
Venus and Mercury continue as a duo in the western twilight this week. The Moon visits Jupiter, then Mars. Saturn shines lonely below the Great Square. The post This Week's Sky at a Glance, November 15 – 24 appeared first on Sky & Telescope.
- Watch the Moon Occult the Pleiades, Spica too!by Bob King on November 13, 2024 at 2:42 pm
The Moon crosses the Pleiades this week, then heads east for the year's most dramatic Spica occultation. The post Watch the Moon Occult the Pleiades, Spica too! appeared first on Sky & Telescope.
- This Week's Sky at a Glance, November 8 – 17by Alan MacRobert on November 8, 2024 at 9:25 am
The stars betray that we've tipped from the season of warm evenings to the cold (or at least crisp). And the Moon this week skims Saturn, then the Pleiades. The post This Week's Sky at a Glance, November 8 – 17 appeared first on Sky & Telescope.
- This Week's Sky at a Glance, November 1 – 10by Alan MacRobert on November 1, 2024 at 8:52 am
The thin crescent Moon pairs beautifully with Venus low in Monday's twilight. And be on the lookout for any Taurid fireballs this week! The post This Week's Sky at a Glance, November 1 – 10 appeared first on Sky & Telescope.
- There Won't Be a Second Bright Comet This Month (Update)by David L. Chandler on October 28, 2024 at 7:11 am
Newfound Comet ATLAS (C/2024 S1) could dazzle – or fizzle. The post There Won't Be a Second Bright Comet This Month (Update) appeared first on Sky & Telescope.
Sky & Telescope – Explore the Night with Bob King:
- Watch the Moon Occult the Pleiades, Spica too!by Bob King on November 13, 2024 at 2:42 pm
The Moon crosses the Pleiades this week, then heads east for the year's most dramatic Spica occultation. The post Watch the Moon Occult the Pleiades, Spica too! appeared first on Sky & Telescope.
- Find a Quasar in the Sky Tonight and Time Travel to the Early Universeby Bob King on October 30, 2024 at 4:32 pm
Travel to the faraway and long ago by riding a quasar's beam. The post Find a Quasar in the Sky Tonight and Time Travel to the Early Universe appeared first on Sky & Telescope.
- Grab Comet Tsuchinshan-ATLAS by the Tailby Bob King on October 23, 2024 at 2:57 pm
We check in with the brightest comet of the year and see what's next, plus an update on Comet ATLAS (C/2024 S1), which still shows signs of life. The post Grab Comet Tsuchinshan-ATLAS by the Tail appeared first on Sky & Telescope.
- Comet Tsuchinshan-ATLAS Climbs, Brightens and Delights!by Bob King on October 15, 2024 at 2:52 pm
Treat yourself to a comet bright enough to see plainly even in moonlight. Tsuchinshan-ATLAS beckons at dusk! The post Comet Tsuchinshan-ATLAS Climbs, Brightens and Delights! appeared first on Sky & Telescope.
- Get Ready for Comet Tsuchinshan-ATLAS — The Best Is Yet to Come!by Bob King on October 11, 2024 at 7:41 pm
Comet Tsuchinshan-ATLAS has delighted observers already, but its morning run was only a warm-up — wait till you see what's coming. The post Get Ready for Comet Tsuchinshan-ATLAS — The Best Is Yet to Come! appeared first on Sky & Telescope.
Stardate Podcast: When astronomers compare the brightness of different stars, they use a scale known as absolute magnitude. That’s how bright the stars would look if they were lined up at the same distance: 10 parsecs, which is 32.6 light-years.
One star they’d barely have to nudge is Pollux, the brightest star […] This has been a busy year for the Sun. It’s near the peak of its 11-year magnetic cycle, so it’s produced some big eruptions of energy and charged particles. Some of those outbursts have caused troubles here on Earth. And future storms could cause even bigger troubles, with some cities facing a […] Jupiter is the “big brother” of the solar system in more ways than one. It’s more than twice as massive as all the other planets and moons combined. That makes its gravity especially strong, so it can push around the little guys. What’s more, Jupiter likely is the oldest of the Sun’s […] The bright Moon has some bright companions tonight: the planet Jupiter and the stars Aldebaran and Elnath. But the Moon washes out some fainter lights: the Leonid meteor shower.
The shower is expected to reach its peak late tonight – perhaps 15 or 20 meteors per hour. But only the brightest of […] The first intentional message to other civilizations was beamed into the galaxy 50 years ago tomorrow. There wasn’t much to it – just 1,679 bits of data. When properly decoded, the message yields a picture – stick-figure outlines of a person and the message’s planet of origin, for example. […]