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Venus and Jupiter meet in the morning sky on Aug. 12. Catch their dazzling conjunction just before sunrise with the crescent moon joining later!

NASA/Robert Markowitz

Second Lady Usha Vance and NASA astronaut Suni Williams listen to the audience in this image from Aug. 4, 2025. Ms. Vance joined Williams at NASA’s Johnson Space Center in Houston for a summer reading challenge event, through which the Second Lady encourages youth to seek adventure, imagination, and discovery between the pages of a book.

Image credit: NASA/Robert Markowitz

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Second Lady Usha Vance and NASA Astronaut Suni Williams listen to the audience in this image from Aug. 4, 2025. Ms. Vance joined Williams at NASA’s Johnson Space Center in Houston for a summer reading challenge event, through which the Second Lady encourages youth to seek adventure, imagination, and discovery between the pages of a book.

Image credit: NASA

Second Lady Usha Vance hosted a special Summer Reading Challenge event at NASA’s Johnson Space Center in Houston on Aug. 4, 2025. She was joined by NASA astronaut Suni Williams to read a space-themed book to children in grades K-8 as part of her initiative to promote literacy.

Even today, the names of women in astronomy are not as well known as they should be.

The post Honoring the Women of Astronomy appeared first on Sky & Telescope.

Spurred by competition from China and Russia, the Trump administration is pushing for nuclear power on the moon by 2030

Electrons released when cosmic rays strike water-ice can provide energy for microbes and facilitate the formation of complex organic molecules.

From movie stars to moguls, test your knowledge of which celebrities have gone to the final frontier.

The Perseids are one of the most visually spectacular meteor showers of the year and are known for spawning impressive fireballs that light up the night sky.

Noah Hawley's daring exploration of the Alien universe makes for a great sci-fi TV show that asks big questions without neglecting the fun factor.

The world's largest optical telescope is still under construction but is raising the roof on its progress.

Companies are adapting this humble clay-based ceramic to keep people cool—without electricity

By transforming idle heliostats into asteroid detectors, scientists aim to develop a cost-effective method for spotting faint, fast-moving space rocks.

You can save 20% on the Hommkiety Galaxy Projector on Amazon, which we praised for its build quality and high-end projections.

As preparations to launch Europe’s first MetOp Second Generation, MetOp-SG-A1, satellite continue on track, the team at Europe’s Spaceport in Kourou, French Guiana, has bid a heartfelt farewell to this precious satellite as it was sealed from view within the Ariane 6 rocket’s fairing.

This all-new weather satellite, which hosts the first Copernicus Sentinel-5 instrument, is set to take to the skies on 13 August at 02:37 CEST (12 August 21:37 Kourou time).

The image reveals over 2,500 galaxies, many of which are seen as they were during the first billion years of cosmic history.

Is the Helix Nebula looking at you?

A brutal alien planet isn't quite the same as future Earth, but Predator: Concrete Jungle has more than a few things in common with Predator: Badlands.

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Curiosity Blog, Sols 4616-4617: Standing Tall on the Ridge NASA’s Mars rover Curiosity acquired this image, showing the impressive landscape it is currently navigating. The rover is standing tall on the ridge, its shadow casting forward, and Mount Sharp towers over the scene in the distance. Curiosity captured this image with its Front Hazard Avoidance Camera (Front Hazcam) on July 30, 2025 — Sol 4614, or Martian day 4,614 of the Mars Science Laboratory mission — at 02:24:02 UTC. NASA/JPL-Caltech

Written by Susanne P. Schwenzer, Professor of Planetary Mineralogy at The Open University, UK

Earth planning date: Wednesday, July 30, 2025

The day started with a little celebration of NISAR, a new Earth observation satellite that made it successfully into orbit a few hours before our planning started. We joined in by saying “GO NISAR, NASA, JPL, and ISRO” (the Indian Space Research Organisation, NASA’s mission partner, which launched NISAR). Learn more at the NISAR mission hub. Although our team studies Mars, Earth is a planet, too, and we are very happy for our colleagues’ successful launch!

On Mars, it’s still winter and the topic of every planning is how to maximize the science we can do given the increased power needs for heating our rover at this time of the year. Curiosity is parked on top of the main ridge, nicknamed the “autobahn.” It turned out to be not as smooth as its terrestrial namesake, as you can see in the image above. To arrive at this parking position, our rover drivers decided to take a small detour down into a flatter area and back up onto the ridge for safe off-road driving. The rover’s parking position allows for beautiful views around us, laying out the land of hollows and ridges perfectly to plan our next steps and to admire Mount Sharp in the distance.

Standing tall on the ridge, we got several investigations of the ridge-forming materials into today’s plan. APXS, MAHLI, and ChemCam are all teaming up to investigate the target “El Salto.” This is a target that could get us a glimpse into what formed the central line that is running along the big ridge. If you look closely at the images there are subtle differences in color and texture, and we are all curious whether that translates to chemical differences, too.

Of course, it’s not all about chemistry. Mastcam is busy documenting a small mound, and its context with veins and the hollow surrounding it, at the target “Llullaillaco.” The target “Cementerio De Tortugas” will capture sand ripples within a trough area, there is an extension of the workspace imaging in the plan for more context of today’s observations, and finally the ridge intersection is of interest at the target “Villa Abecia.” Of course, Mastcam didn’t forget the documentation of the ChemCam target “El Salto” and the AEGIS target from the last plan. Speaking of ChemCam: It’s using its imaging capabilities to document the side of the ridge to give finer details of the sedimentary structures of the target “Llullaillaco.”

Atmospheric observations are also of highest interest at this time of the day. We continue our atmospheric monitoring by looking for dust devils as well as up toward the clouds in a joint observation with the CASSIS instrument, which is aboard the European Space Agency’s Trace Gas Orbiter. In addition, Curiosity continues to monitor wind and temperature throughout the plan, and the DAN (dynamic albedo of neutrons) instrument observes the rocks underneath the rover for their water content.

After completing the observations at the current parking location, Curiosity will be driving off the ridge again, but this time to stay within the hollow, so we can make observations of the material that forms those hollows. Let’s see if we can find any chemical differences between those materials that might explain why one is standing up tall and the other one is weathering out. If you want to get a better impression of what I am talking about when I say ridges and troughs, have a look at this recent navigation camera mosaic.

Learn more about Curiosity’s science instruments

For more Curiosity blog posts, visit MSL Mission Updates

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Viewed from space, Earth at night tells endless stories. Using satellite data, we can track population growth, natural disaster damage, cultural celebrations, and even space weather. Studying these glowing patterns helps us understand human activity, respond to disasters, and witness a changing world.

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