The Growing Crescent of Mars as NASA’s Psyche Mission Approaches

The Growing Crescent of Mars as NASA’s Psyche Mission Approaches

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The Growing Crescent of Mars as NASA’s Psyche Mission Approaches

A time-lapse composite against a black background shows a series of concentric, glowing orange crescent planetary horizons that expand outward from a small central point, illustrating a spacecraft's approach during a Mars flyby.
PIA26586
Credits:
NASA/JPL-Caltech/ASU

Description

This composite of images taken by NASA’s Psyche mission shows the crescent of Mars grow as the spacecraft approached the planet for a gravity assist from May 2 to May 15, 2026. The series begins with the smallest crescent at the center of the of the image as Mars is farthest from the spacecraft, and progressively grows as the spacecraft gets closer. After these views were captured by the spacecraft’s multispectral imager instrument, Mars began to overfill the field of view as Psyche made close approach with the planet and captured a series of high-resolution images of the surface.

Because Psyche approached Mars from a high phase angle, the planet appeared as a thin crescent in the days running up to the close approach, lit by sunlight reflecting off its surface. Using these views of the approach, close approach, and departure from Mars, the Psyche team compiled a stunning time-lapse of its entire Mars encounter.

For more information about NASA’s Psyche mission, visit:

https://science.nasa.gov/mission/psyche/

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Establishing a VTE Risk Score for Astronauts Algorithm

Establishing a VTE Risk Score for Astronauts Algorithm

Spontaneous echo contrast (SEC) grade 3 with peripheral echogenicity.
NASA/Pavela

In April 2026, NASA’s Office of the Chief Health and Medical Officer (OCHMO) initiated a working group to review updated VTE case information, additional data gathered revealing altered blood flow status within a cohort of astronauts, and discuss progress of research and clinical activities intended to mitigate the risk of VTE during spaceflight with new evidence-based clinical practice recommendations.

Recommendations

The following is a summary of the working group’s recommendations:

  • The working group’s conclusions emphasized that stasis in the left internal jugular vein (IJV) is consistently viewed as a dominant risk factor for VTE in microgravity, though there is active debate regarding the relative contributions of slow qualitative flow, endothelial factors and/or retrograde flow.
  • Limitations of current in-flight ultrasound capabilities to accurately measure stasis/slow flow was cited as a concern, especially if using only stasis as a factor for indicating the need for prophylaxis.
  • Additional review of assessing stasis with ultrasound in-flight was recommended.
  • After reviewing the risk factors, additional discussions following the working group led to the majority of the panel agreeing that stasis and retrograde flow warranted use of prophylaxis.
  • The working group also recommended assessing all other risk factors other than stasis to also determine when prophylaxis is warranted.
  • Based on a literature review and summary of the panel contributions, a VTE Risk Score for Astronauts Algorithm was developed, which includes providing anticoagulation prophylaxis for stasis alone, or a combination of other thrombosis risk factors that are weighted by terrestrial literature.

Risk of Venous Thromboembolism During Spaceflight

NASA initially formed a working group in October 2024 after diagnosing venous thromboembolisms (VTEs) in astronauts during ISS missions. Experts reviewed case data, updated Clinical Practice Guidelines, and examined possible causes.

Approximate location of identified thrombi in crewmembers.
Source: Modified from Cerebral Sinus Venous Thrombosis – University of Colorado Denver

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Sarah Taoufik

NASA Awards Facilities Support Services Contract for Ames Research Center 

NASA Awards Facilities Support Services Contract for Ames Research Center 

CONTRACT RELEASE

NASA has selected Chugach Intelligence Solutions LLC to provide comprehensive operations, maintenance, and repair services for NASA’s Ames Research Center in California’s Silicon Valley. 

The Ames Facilities Support Services II contract ensures that the center’s historic and specialized facilities are properly maintained, fully operational, and capable of supporting the agency’s missions and tenant partners in the NASA Research Park. 

The hybrid contract has a five-year period of performance, consisting of a 12-month base period and four 12-month option periods, with the possibility of a six-month extension. The performance period is expected to begin Thursday, Aug. 13. The contract includes cost-plus-award-fee core requirements, firm-fixed-price phase-in, and indefinite-delivery/indefinite-quantity task orders, providing flexibility to address both routine and emergent facility needs. The award has a maximum potential value of approximately $158 million, inclusive of all options and total indefinite-delivery/indefinite-quantity ceiling value. 

For more information about NASA and its missions, visit: 

https://www.nasa.gov

-end- 

Jeanne Neal
Ames Research Center, Silicon Valley, Calif.
650-604-4789
jeanne.c.neal@nasa.gov

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Jeanne Neal

NASA’s Chandra and IXPE Study Pulsar in Lighthouse Nebula

NASA’s Chandra and IXPE Study Pulsar in Lighthouse Nebula

This composite multiwavelength image captures the turbulent environment surrounding the Lighthouse pulsar, set against a vast, black background speckled with twinkling white and faint green stars. In the upper-left quadrant, a massive, cloud-like nebula glows in a textured, vibrant purple hue, anchored by a prominent four-pointed star shining brightly near its center. Moving toward the lower-right quadrant, the pulsar itself is located at the lower tip of a concentrated, brilliant whitish-blue elongated point of light. Extending outward from its core is a long, narrow, and slightly curved jet of purple and blue emission that streaks upward and to the right. This jet represents a massive 37-light-year tail of high-energy particles trailing behind the rapidly spinning star as it plow through interstellar space. This composite image contains X-ray data from NASA's Chandra X-ray Observatory in purple, additional X-ray from NASA's IXPE in blue, and radio data from CSIRO in green. The starfield is optical data from the 2MASS survey.
Scientists using NASA’s IXPE (Imaging X-ray Polarimetry Explorer) directly measured the magnetic fields of PSR J1101−6101, a pulsar located within what is often referred to as the “Lighthouse” Nebula, for the first time.
X-ray: Chandra: NASA/CXC/Stanford Univ./J. Dinsmore et al.; IXPE: NASA/MSFC/J. Dinsmore et al., Radio: CSIRO/ATNF/ATCA; Optical: 2MASS/UMass/IPAC-Caltech/NASA/NSF; Image processing: NASA/CXC/SAO/L. Frattare

This composite image, released on July 9, 2026, shows the region around a pulsar – a neutron star with a strong magnetic field that spins incredibly fast – within the Lighthouse nebula. The image contains X-ray data from NASA’s Chandra X-ray Observatory in purple, X-rays from NASA’s IXPE (Imaging X-ray Polarimetry Explorer) in blue, and radio emission captured by the Australia Compact Telescope Array in green.

Scientists used IXPE – for the first time ever – to directly measure the magnetic fields of the pulsar. The results provide new insight into the structure of some of the most extreme objects in the cosmos, as NASA continues to explore the secrets of how the universe works. A paper describing the results published July 9 in the Astrophysical Journal.

Read more about this novel use of IXPE.

Image credit: X-ray: Chandra: NASA/CXC/Stanford Univ./J. Dinsmore et al.; IXPE: NASA/MSFC/J. Dinsmore et al., Radio: CSIRO/ATNF/ATCA; Optical: 2MASS/UMass/IPAC-Caltech/NASA/NSF; Image processing: NASA/CXC/SAO/L. Frattare

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La NASA invita a los medios de comunicación al lanzamiento del telescopio espacial Roman

La NASA invita a los medios de comunicación al lanzamiento del telescopio espacial Roman

Aquí puede verse el telescopio espacial Nancy Grace Roman de la NASA en la sala limpia del Centro de Vuelo Espacial Goddard de la agencia en Greenbelt, Maryland, donde este observatorio fue construido y sometido a pruebas. Los amplios y profundos sondeos de Roman explorarán la materia oscura, la energía oscura, los exoplanetas y prácticamente cualquier objeto celeste, desde nuestro propio sistema solar hasta galaxias situadas en los confines del universo observable.
Crédito: NASA/Jolearra Tshiteya

Read this release in English here.

Ya está abierto el plazo de acreditación de los medios de comunicación para el lanzamiento de la misión del telescopio espacial Nancy Grace Roman de la NASA.

El lanzamiento del telescopio Roman está programado para no antes de las 7:20 a.m. (hora del este) del domingo 30 de agosto, a bordo de un cohete Falcon Heavy de SpaceX, desde el Complejo de Lanzamiento 39A en el Centro Espacial Kennedy de la NASA en Florida. Este observatorio, que lleva el nombre de la primera astrónoma jefa de la NASA, ofrecerá una visión profunda y panorámica del cosmos, generando imágenes nunca antes vistas que revolucionarán nuestra comprensión del universo.

Los medios interesados en asistir al lanzamiento deben presentar su solicitud antes de los siguientes plazos:

  • Los representantes de medios de comunicación internacionales sin ciudadanía estadounidense deben presentar su solicitud antes de las 11:59 p.m. del domingo 26 de julio.
  • Los medios de comunicación de Estados Unidos y los ciudadanos estadounidenses que representen a organizaciones de medios internacionales deben presentar su solicitud antes de las 11:59 p.m. del jueves 30 de julio.•

Todas las solicitudes de acreditación deben ser enviadas en línea a través del sitio web:

https://media.ksc.nasa.gov

La política de acreditación de medios de la NASA está disponible en línea. Para consultas sobre la acreditación o para solicitudes logísticas especiales, envíe un correo electrónico a: ksc-media-accreditat@mail.nasa.gov.

Para otras consultas, comuníquese con la sala de prensa del Centro Espacial Kennedy de la NASA al teléfono: 321-867-2468.

Para obtener más información sobre esta misión, visite el sitio:

https://www.ciencia.nasa.gov/roman

-fin-

Alise Fisher / María José Viñas
Sede central de la NASA, Washington
202-385-1287
alise.m.fisher@nasa.gov / maria-jose.vinasgarcia@nasa.gov

Leejay Lockhart
Centro Espacial Kennedy, Florida
321-747-8310
leejay.lockhart@nasa.gov

Claire Andreoli
Centro de Vuelo Espacial Goddard de la NASA, Greenbelt, Maryland
301-286-1940
claire.andreoli@nasa.gov

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Last Updated

Jul 17, 2026

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Lauren E. Low