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APOD: 2026 August 1 – Buck Moon and Belt of Venus

2026-08-01 04:05

APOD

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.

Buck Moon and Belt of Venus

Explanation: The Buck Moon is a traditional name for the full moon of July. In this colorful Adriatic sea and skyscape captured on July 28 from Krk Island along the coast of Croatia, a full Buck Moon is just rising over distant mountains. Since a full moon rises as the Sun sets, Earth’s shadow also rises in the twilight scene, a diffuse gray band extending above the mountainous southeastern horizon. Above Earth’s shadow band is the pinkish antitwilight arch. That subtly tinted band of backscattered sunlight is more widely known as the Belt of Venus. But as it shares the eastern horizon with the atmospheric shadow of Earth and Belt of Venus, this full Buck Moon seems to set the stage for the New Moon to come. The New Moon of August 12 will cast its own shadow on planet Earth in a much anticipated total solar eclipse.

Tomorrow’s picture: fire and rainbow

Date August 1, 2026
Credit Image Credit & Copyright: Branko Nadj
Authors & editors: Robert Nemiroff, Jerry Bonnell, Cecilia Chirenti, Keighley Rockcliffe
A service of: ASD at NASA / GSFC,
NASA Science Activation & Michigan Tech. U.

What’s Up: August 2026 Skywatching Tips from NASA

2026-07-31 22:35

A solar eclipse, the Perseids, bright Venus after sunset, and a deep partial lunar eclipse highlight August’s skywatching.

Skywatching Highlights

  • Aug. 5: Last Quarter Moon
  • Aug. 12: Total solar eclipse across northern Russia, Greenland, Iceland, northern Spain, and part of Portugal; partial eclipse in parts of the U.S.; New Moon
  • Aug. 12-13: Perseid meteor shower peak under dark skies
  • Aug. 14-16: Venus reaches greatest eastern elongation and shines low in the west after sunset
  • Aug. 27-28: Partial lunar eclipse visible from much of North and South America and parts of Europe and Africa

Transcript

A solar eclipse, one of the year’s best meteor showers, Venus at its brightest in the evening sky, and a lunar eclipse to close out the month.

That’s “What’s Up” for August.

On Aug. 12, a total solar eclipse crosses northern Russia, Greenland, Iceland, and northern Spain, with a small corner of Portugal inside the path of totality.

In parts of the United States, from Alaska to North Carolina, the eclipse is partial. The Moon will take only a small bite out of the Sun, and the amount of coverage will vary with location.

A stylized flat map of the Earth indicating the viewing areas for a solar eclipse, with text on the left reading 'AUGUST 12: SOLAR ECLIPSE'. A semi-transparent dark shadow covers the northern portion of the globe, fanning out from the top edge. Within this shadow, a thin dotted line arcs down from the Arctic, crossing near Greenland and Iceland, passing over the Iberian Peninsula (Spain and Portugal), and ending near the Mediterranean Sea; this line is labeled 'PATH OF TOTALITY'. The broader shaded region surrounding this line is labeled 'PARTIAL ECLIPSE VISIBLE', and it covers northern North America, the Arctic, all of Europe, northern Africa, and northern and western Asia. The unshaded regions covering the rest of the map, including most of the United States, South America, central and southern Africa, and Australia, indicate areas where the eclipse will not be visible.
A map showing viewing areas of the August 2026 total solar eclipse.
NASA/JPL-Caltech

Remember to watch safely. Use certified eclipse glasses or a safe solar viewer any time any part of the Sun is visible. Regular sunglasses are not safe. And never use binoculars, a telescope, or a camera without a solar filter made for the front of the optics.

Later that same night, the Perseid meteor shower will light up the sky, peaking the evening of Aug. 12 into the early morning hours of the 13th. And with a New Moon arriving on the 12th, the skies will be ideally dark.

The Perseids happen every year when Earth passes through a debris stream left behind by Comet Swift-Tuttle. As those tiny bits of comet dust hit our atmosphere at high speed, they burn up as bright streaks of light.

To view this meteor shower, look toward the northeast once it’s fully dark and watch for the constellation Perseus to clear the horizon. This is where the meteors originate, but let your eyes wander, because they can flash across any part of the sky.

For the best view, stay out late as the stars climb higher, find a dark open spot, and give your eyes 30 minutes to adjust.

An illustration of the night sky showing where to look for meteors, with text at the bottom reading 'August 13 looking northeast around 1:30am.' The bottom of the image shows a dark, silhouetted horizon of hills, marked with blue compass directions N (North), NE (Northeast), and E (East). In the center of the sky above NE is a teal burst icon labeled 'RADIANT,' indicating the point from which meteors appear to originate. A bright, white meteor streaks across the dark, starry sky, pointing back toward the radiant. Two other bright celestial objects are labeled: the star 'CAPELLA' is situated low in the sky below the radiant, and the planet 'SATURN' is positioned high up in the upper right corner. Small text in the bottom left corner reads 'Artist's concept.'
This illustration shows where in the night sky to look for the Perseid meteor shower.
NASA/JPL-Caltech

Aug. 14-16, Venus reaches its greatest eastern elongation, which is its widest apparent separation from the Sun during this evening appearance.

Look low in the western sky shortly after sunset for the bright object that will outshine every star around it. Through a telescope after sunset, Venus will look close to half lit, like a tiny lunar phase.

An illustration of the evening sky shortly after sunset, showing the positions of celestial objects. Text at the bottom center reads 'August 14 looking west just after sunset'. The bottom edge features a silhouetted, dark horizon of hills or mountains. Above the horizon, compass directions are indicated in purple: 'SW' (Southwest) on the left, 'W' (West) in the center, and 'NW' (Northwest) on the right. In the center, sitting very low on the horizon, is a faint crescent moon, labeled 'MOON'. Just to the left and slightly above the moon is a bright, white dot labeled 'VENUS'. Higher up and to the left of Venus is a smaller white dot labeled 'SPICA'. Above and to the right of Spica, towards the center of the image, is another labeled star, 'ARCTURUS'. The sky transitions from a deep reddish-purple near the horizon to dark blue at the top, sprinkled with numerous faint stars. In the bottom left corner, small text reads 'Artist's concept.'
This illustration shows where to observe Venus after sunset in August.
NASA/JPL-Caltech

On the night of Aug. 27, continuing into Aug. 28 for some time zones, the Full Moon slips through Earth’s shadow, resulting in a partial lunar eclipse. It will be visible from much of North and South America and parts of Europe and Africa.

A stylized flat map of the Earth indicating the viewing areas for a lunar eclipse, with text at the bottom reading 'AUGUST 27-28: LUNAR ECLIPSE'. Large, semi-transparent dark bands arch across the map to represent visibility zones. The darkest central band, labeled 'FULL ECLIPSE VISIBLE', covers all of North America and South America, as well as the eastern Pacific Ocean and western Atlantic Ocean. Flanking this central region on the left and right are lighter shaded bands labeled 'PARTIAL ECLIPSE VISIBLE'. The western partial eclipse band covers the western Pacific Ocean and New Zealand, while the eastern partial eclipse band covers Europe and Africa. The unshaded outer regions of the map, including most of Asia and Australia, are areas where the eclipse will not be visible.
Viewing areas for the August 2026 lunar eclipse.
NASA/JPL-Caltech

At maximum eclipse, about 93% of the Moon’s diameter will be inside Earth’s dark central shadow, called the umbra. The Moon will not be completely covered, but it can look dramatically darkened, with a rusty, coppery tint along the covered edge.

Unlike a solar eclipse, a lunar eclipse is safe to watch with just your eyes. Binoculars or a small telescope can give you a closer view of Earth’s curved shadow moving across the Moon.

Here are the phases of the Moon for August.

An infographic on a black background titled 'August 2026' showing four primary phases of the Moon arranged in a horizontal row. Each phase features an image of the Moon with text above indicating the phase name and a number below indicating the date in August. From left to right:  'Third Quarter' on the 5th, showing the left half of the Moon illuminated. 'New Moon' on the 12th, showing the Moon's face completely in shadow. 'First Quarter' on the 19th, showing the right half of the Moon illuminated. 'Full Moon' on the 27th, showing the entire face of the Moon illuminated.
NASA/JPL-Caltech

You can stay up to date on all of NASA’s missions exploring the solar system and beyond at science.nasa.gov. I’m Raquel Villanueva from NASA’s Jet Propulsion Laboratory, and that’s What’s Up for this month.

Keep Exploring

Discover More Topics From NASA

NASA to Host Florida Event Celebrating American Air, Space Leadership

2026-07-31 21:08

An American flag is seen in front of NASA’s SLS (Space Launch System) rocket and Orion spacecraft at NASA’s Kennedy Space Center in Florida on Jan. 17, 2026, ahead of the historic Artemis II test flight. NASA will host a news conference at NASA Kennedy on Friday, Aug. 14, to highlight American leadership in space and aviation.
Credit: NASA/Joel Kowsky

NASA will hold a news conference at 2:30 p.m. EDT, Friday, Aug. 14, live from the agency’s Kennedy Space Center in Florida, and media and digital creators are invited to attend in person.

The announcement, held in the XLV Hangar at the Shuttle Landing Facility, will preview a new event at NASA Kennedy later this year tied to America’s 250th anniversary, showcasing American leadership in aviation, space exploration, and emerging technologies while bringing together the public, industry leaders, innovators, and the next generation of explorers.

Participants include:

  • NASA Administrator Jared Isaacman
  • NASA leadership
  • Members of Congress

The agency will stream this news conference live through a variety of platforms:

https://www.nasa.gov/live

This event is open to U.S. media and digital creators. The request to attend must be received no later than 12 p.m. on Thursday, Aug. 6, to the Kennedy newsroom at: https://media.ksc.nasa.gov. NASA’s media accreditation policy is available online.

For more information about NASA’s missions, visit:

https://www.nasa.gov

-end-

George Alderman / Cheryl Warner
Headquarters, Washington
202-358-1600
george.a.alderman@nasa.gov / cheryl.m.warner@nasa.gov

Danielle Sempsrott
Kennedy Space Center, Fla.
321-298-8990
danielle.c.sempsrott@nasa.gov

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Last Updated
Jul 31, 2026
NASA’s Newest Wind Tunnel Opens at NASA Langley

2026-07-31 20:19

A group of people in suits stand in front of a massive square building that has two big square openings in it that go all the way through. The people all hold big pairs of scissors, as they wait to cut a red, white, and blue ribbon placed in front of them.
From left to right: Casey Swails, NASA deputy associate administrator; Mike Waller, vice president of BL Harbert International Federal Division; Edward C. Forst, administrator of the U.S. General Services Administration; NASA Administrator Jared Isaacman; Dr. Trina Dyal, director of NASA’s Langley Research Center; Rep. Robert “Bobby” Scott (D-Va.); Virginia Lt. Gov. Ghazala F. Hashmi; Jimmy Gray, mayor, City of Hampton; and Amit Kshatriya, NASA associate administrator, pose for a photo before cutting the ribbon to open the Flight Dynamics Research Facility, NASA’s newest wind tunnel, Friday, July 31, 2026, at NASA’s Langley Research Center in Hampton, Virginia.
NASA/Keegan Barber

On Friday, July 31, 2026, NASA leadership and Virginia government officials opened NASA’s first major new wind tunnel in more than 40 years, the Flight Dynamics Research Facility at NASA’s Langley Research Center in Hampton, Virginia.

The state-of-the-art facility will support research and technology development that will advance the agency’s aeronautics, exploration, and science goals, including establishing a sustained human presence on the lunar surface through the Artemis program and the development of a Moon Base.

See more photos from the ribbon-cutting ceremony.

Image credit: NASA/Keegan Barber

TB 26-04 Webbings for Use in Elevated Oxygen Environments

2026-07-31 19:05

Flammability test results for commercial-off-the-shelf webbings that meet NASA flammability requirements are reported for use in elevated oxygen environments anticipated for future lunar and Martian missions. Testing demonstrated that a webbing composed of 60% Kevlar®/40% polybenzimidazole (PBI) from Sturges Manufacturing Company, Inc., specifically the natural version, passed flammability testing per NASA-STD-6001B Test 1 using a surface ignition in J-configuration at 37% oxygen and 8.2 psia. Offgassing data are also provided for the natural webbing, which is gold colored. These findings support their potential use as suitable webbings
for softgoods applications, although final performance and wear characteristics must be validated in full configuration.

Background
An elevated oxygen environment is planned for future crewed missions to the Moon and Mars to reduce the prebreathe time before extravehicular activities. In this study, materials are being evaluated for use at 37% oxygen and 8.2 psia. An enriched oxygen environment increases the flammability risk and the need for improved fire-resistant materials. The NASA Engineering and Safety Center (NESC) developed a strategy to ensure textile materials that meet NASA flammability requirements in this environment are available to the aerospace community as the building blocks to softgoods flight hardware. The strategy is being implemented by the Mars Campaign Office and Johnson Space Center with support from the NESC. The first phase is testing commercial-off-the-shelf (COTS) textiles with high potential to meet flammability requirements.

Problem/Issue Description
Narrow woven fabrics, commonly referred to as webbing or woven tape, are used in multiple softgood applications, including crew mobility aids, restraint nets, and storage bag handles. The standard meta-aramid or nylon webbings do not meet the flammability requirements in elevated oxygen.

Test Methods/Data Collection
NASA-STD-6001B Test 1 was performed on the webbing candidates at White Sands Test Facility (WSTF) to determine the maximum oxygen concentration (MOC) at a pressure of 8.2 psia. The test was performed in an unshielded J configuration, where the cut edge of the webbing was not exposed to the flame and the igniter impinged on the front surface of the material, which included the lateral free edge of the webbing. Flammability performance after wear and tear was not assessed. The MOC test refers to the maximum oxygen concentration at which a minimum of five samples tested pass the NASA-STD-6001B criteria at a fixed pressure. One-inch-width natural and black webbings, composed of 60% Kevlar and 40% PBI produced by Sturges Manufacturing (see Figure 1), were tested. The available webbing widths range from ¼ to 8 inches.

Analysis and Results
Table 1 summarizes the webbing properties and test results. The webbings had MOCs of 37% and 35% oxygen for the natural and black webbing, respectively, at 8.2 psia. In addition, offgas testing was performed on natural webbing per NASA-STD-6001B Test Detailed test results can be found in MAPTIS links listed in the reference section.
Webbing properties and test results.
These results should be used to select materials for incorporation into a final softgood product. The final flammability result will depend on the other components of the end item and must be tested in configuration to ensure the final product meets requirements. Individual textile results do not guarantee the performance of the finished assembly. Variations on this webbing (i.e., including but not limited to dimensions, weave type and yarn size, density, treatments, color, fiber blend, edge finish technique, the addition of features like hook and loop fasteners, and wear and tear) may affect flammability characteristics and should be evaluated before use.

References

  1. Black color webbing: Flammability Report WSTF 26-49145,
    https://maptis.ndc.nasa.gov/matsel/app/material/73441?sender=global-search
  2. Natural color webbing: Flammability and Offgassing Report WSTF 26-49149,
    https://maptis.ndc.nasa.gov/matsel/app/material/73442?sender=global-search
  3. HEO-DM-1006 Updated Exploration Atmospheres
  4. Manufacturer website: https://www.sturgesmfgco.com/
  5. Manufacturer contact: Mike Allen (mallen@sturgesmfgco.com 315-880-0937)
  6. NASA-STD-6001B Flammability, Offgassing, and Compatibility Requirements
    and Test Procedures

TechCrunch - Latest

OpenAI reportedly finds evidence that more of its agents ran amok

2026-07-31 22:47

OpenAI has reportedly found evidence of additional agent misbehavior as it looks into the incident that occurred with Hugging Face.
Rivian spinoff Also to start delivering e-bikes after months of delays

2026-07-31 22:00

Also has big plans beyond the TM-B. The startup mostly refers to itself as a "vehicle" company and has plans to make four-wheel pedal-assist cargo vehicles for Amazon.
Silicon Valley loves young founders. Until it doesn’t.

2026-07-31 22:00

AI tools have democratized the opportunity to build, shortening the timelines of success and enabling more young people to start successful companies without stepping foot inside a Big Tech company. 
India is starting to pay for apps, not just download them

2026-07-31 21:07

India's app market generated a record $345 million in Q2.
Google nixes its Earth AI feature one day after launch, amid criticism it would spread misinformation

2026-07-31 19:47

A tool that allowed anyone to generate fake AI-generated imagery and superimpose it over real Google Earth maps quickly spurred backlash.
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