Who are we? We find that we live on an insignificant planet of a humdrum star lost in a galaxy tucked away in some forgotten corner of a universe in which there are far more galaxies than people

— Carl Sagan

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Rare 'triple-dip' La Niña may explain why 2023 was so hot

New Scientist Space - Cosmology - Mon, 08/18/2025 - 8:00am
The record-breaking global temperatures seen in late 2023 may have emerged partly because of unusual conditions in the Pacific Ocean in the preceding years
Categories: Astronomy

Rare 'triple-dip' La Niña may explain why 2023 was so hot

New Scientist Space - Space Headlines - Mon, 08/18/2025 - 8:00am
The record-breaking global temperatures seen in late 2023 may have emerged partly because of unusual conditions in the Pacific Ocean in the preceding years
Categories: Astronomy

Hubble telescope uncovers rare star born from cosmic collision: 'A very different history from what we would have guessed'

Space.com - Mon, 08/18/2025 - 8:00am
"It's a discovery that underlines things may be different from what they appear to us at first glance."
Categories: Astronomy

What New Human Ancestor Has Been Discovered, and How a Virus Outbreak in China Could Reach the U.S.

Scientific American.com - Mon, 08/18/2025 - 6:00am

China is having a fast-rising chikungunya outbreak in a place that has never had one before.

Categories: Astronomy

Don't miss Mercury, the moon and the Beehive Cluster align in a special August morning sky show

Space.com - Mon, 08/18/2025 - 6:00am
A rare August morning alignment brings Mercury, a thin crescent moon and the Beehive Cluster together in the predawn sky. Here's how you can see it for yourself.
Categories: Astronomy

Jupiter's moon Ganymede could be a giant dark matter detector

New Scientist Space - Space Headlines - Mon, 08/18/2025 - 4:00am
Large dark matter particles hitting Jupiter’s largest moon would form distinctive craters in its icy surface, and upcoming space missions might be able to spot them
Categories: Astronomy

Jupiter's moon Ganymede could be a giant dark matter detector

New Scientist Space - Cosmology - Mon, 08/18/2025 - 4:00am
Large dark matter particles hitting Jupiter’s largest moon would form distinctive craters in its icy surface, and upcoming space missions might be able to spot them
Categories: Astronomy

Curiosity Blog, Sols 4629-4630: Feeling Hollow

NASA News - Mon, 08/18/2025 - 3:03am
Curiosity Navigation

2 min read

Curiosity Blog, Sols 4629-4630: Feeling Hollow NASA’s Mars rover Curiosity acquired this image of its workspace, including the small crescent-shaped rock named “Wedge Tailed Hillstar,” visible in the image just above the letters “SI” written on Curiosity’s arm. Curiosity captured the image using its Left Navigation Camera on Aug. 13, 2025 — Sol 4628, or Martian day 4,628 of the Mars Science Laboratory mission — at 08:54:46 UTC. NASA/JPL-Caltech

Written by Elena Amador-French, Science Operations Coordinator at NASA’s Jet Propulsion Laboratory

Earth planning date: Wednesday, Aug. 13, 2025

Today’s team investigated the texture and chemistry of the bedrock within a topographic low, or hollow, found within the greater boxwork area. We will place our APXS instrument on the “Asiruqucha” target, some light-toned, small-scale nodular bedrock in the middle of our workspace. These data will help illuminate any systematic chemical trends between the hollows and ridges in this area. We always take an associated MAHLI image with every APXS measurement to help contextualize the chemistry. We will also observe a small crescent-shaped rock named “Wedge Tailed Hillstar” with MAHLI, visible in the above Navcam image just above the letters “SI” written on Curiosity’s arm.

We will use our remote sensing instruments to continue documenting the region taking stereo Mastcam images of “Cerro Paranal,” “Rio Frio,” and “Anchoveta.”  The ChemCam instrument will take an image of, and collect chemical information for, the target “Camanchaca,” as well as use its Remote Micro Imager (RMI) to take high-resolution imaging of more distant boxwork features. 

Once these observations are completed Curiosity will set off on a 30-meter drive (about 98 feet), taking us to an interesting ridge feature to investigate in Friday’s plan.

As usual we will continue to take our regular atmospheric monitoring observations using REMS, RAD, and DAN.

NASA’s Mars rover Curiosity at the base of Mount Sharp NASA/JPL-Caltech/MSSS

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Last Updated

Aug 18, 2025

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Covid-19 seems to age blood vessels – but only among women

New Scientist Space - Cosmology - Sun, 08/17/2025 - 8:05pm
Women's arteries seem to be stiffer if they have had covid-19, with the same effect not being found among men
Categories: Astronomy

Covid-19 seems to age blood vessels – but only among women

New Scientist Space - Space Headlines - Sun, 08/17/2025 - 8:05pm
Women's arteries seem to be stiffer if they have had covid-19, with the same effect not being found among men
Categories: Astronomy

How AI Could Prevent Satellite Collisions

Universe Today - Sun, 08/17/2025 - 5:45pm

Space is getting dangerously crowded but a new automated system could be the key to preventing catastrophic collisions that threaten our satellites and astronauts. The European Space Agency has developed CREAM (Collision Risk Estimation and Automated Mitigation), a revolutionary technology that aims to transform how we manage traffic in Earth orbit and keep space safe for future generations.

Categories: Astronomy

NASA's Juno Spacecraft Could Intercept 3I/ATLAS as it Approaches Jupiter

Universe Today - Sun, 08/17/2025 - 5:45pm

arXiv:2507.21402v1 Announce Type: new Abstract: The interstellar object 3I/ATLAS is expected to arrive at a distance of $53.56(\pm 0.45)$ million ${\rm km}$ ($0.358\pm 0.003$~au) from Jupiter on March 16, 2026. We show that applying a total thrust $\Delta$V of $2.6755{{\rm km~s^{-1}}}$ to lower perijove on September 9, 2025 and then execute a Jupiter Oberth Maneuver, can bring the Juno spacecraft from its orbit around Jupiter to intercept the path of 3I/ATLAS on March 14, 2026. A close fly-by...

Categories: Astronomy

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APOD - Sun, 08/17/2025 - 12:00pm

Everybody sees the Sun.


Categories: Astronomy, NASA

How much has Mercury shrunk?

Space.com - Sun, 08/17/2025 - 11:00am
Mercury is still shrinking as it cools in the aftermath of its formation; new research narrows down estimates of just how much it has contracted.
Categories: Astronomy

See a trio of spectacular star clusters brighten the summer sky in August 2025

Space.com - Sun, 08/17/2025 - 10:00am
The Hyades, Pleiades and Hercules star clusters make for excellent targets in the late summer months.
Categories: Astronomy

Mercury quiz: How well do you know the Swift Planet?

Space.com - Sun, 08/17/2025 - 9:00am
This quiz will explore the facts, the fun and the fascinating quirks of our solar system’s speedster, Mercury
Categories: Astronomy

How the nature of environmental law is changing in defense of the planet and the climate

Space.com - Sun, 08/17/2025 - 8:00am
The effects of Earth's changing climate is driving up the number of legal suits related to environmental issues
Categories: Astronomy

NASA and Google test AI medical assistant for astronaut missions to the moon and Mars

Space.com - Sun, 08/17/2025 - 6:00am
Google and NASA are trialing an AI-powered medical assistant that could help astronauts care for themselves when mission control is out of reach.
Categories: Astronomy