NASA Science

From Earth orbit to the Moon and Mars, explore the world of human spaceflight with NASA each week on the official podcast of the Johnson Space Center in Houston, Texas.

The Distance Scale to Gamma Ray Bursts Baird Auditorium Natural History Museum, The Smithsonian Institution22 April 1995 Debate Program: 1 – 4:15 pm; Reception: 4:15 – 5:30 pm Debate Program Sponsors: NASA, The Smithsonian Institution, George Mason Univer…

The four members of NASA’s SpaceX Crew-13 mission to the International Space Station pose together for an official crew portrait.

The Distance Scale to Gamma-Ray Bursts Great Debate in 1995 An Introduction by Robert Nemiroff The 1920 Shapley-Curtis Discussion: Background, Issues, And Outcome by Virginia Trimble Gamma-Ray Bursts: An Overview by Gerald Fishman How Far Away Are Gamma-R…

APOD Science APOD APOD: 2026 September 25 –… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss APOD Astronomy Picture of the Day Discover the cosmos!

Earth Observatory Science Earth Observatory Explosive Intensification for… Earth Earth Observatory Image of the Day EO Explorer Topics All Topics Atmosphere Land Heat & Radiation Life on Earth Human Dimensions Natural Events Oceans Remote Sensing Technolo…

Crew-14 Preflight Training at SpaceX.

Credit: NASA Côte d’Ivoire signed the Artemis Accords on Thursday as the 75th signatory during a signing ceremony in the nation’s largest city Abidjan, marking the largest milestone yet for the international coalition of like-minded countries committed to…

NASA’s SpaceX Crew-14 crew members during preflight training at SpaceX’s facility in Hawthorne, California (from left, Roscosmos cosmonaut Arutyun Kiviryan, NASA astronaut Chris Birch, NASA astronaut Kayla Barron, and JAXA (Japan Aerospace Exploration Age…

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Paul Seibert Postdoctoral Researcher Affiliation: Bay Area Environmental Research Institute, NASA Ames Research Center Division: Earth Science Division (SG) Email: paul.o.seibert@nasa.gov Personal Biography Paul Seibert is a postdoctoral researcher with t…

AI-Astrobiology Menu Bar Home About Resources Introduction to AI ML & AI Guide Algorithm Central Training Sets Project Repository Literature Review Seminars Join the Community AI/ML News Update on NASA Foundation Model Progress: To the Moon and Beyond Sep…

APOD Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss Glossary Cepheid: A type of variable star used to determine distance.

Director: Center for SETI Research SETI Institute, 1984 – 2012 Emeritus Chair for SETI Research How will humanity first discover ET Life?

by Robert J.

Cosmic Origins … Cosmic Origins Community IR STIG PRIMA Seminar, 28… About Community Executive Committee Science Groups Conferences Cosmic Pathfinders Early Career Workshop Opportunities Missions Studies News & Events Resources IR STIG PRIMA Seminar Infra…

APOD Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss Professor: Biology, Earth & Space Sciences, U.

‘Great Debate’ Short Bibliography This is a subjective list of 5 excellent refernce works about the Great Debate in 1920.

by Michael A.

APOD Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss [What follows is a hypertext transciption of the published version of the `Great Debate’ by Shapley and Curtis.

Physics of the Cosmos … Physics of the Cosmos Community PhysCOS: Virtual Panel on… About Community Program Analysis Group (PhysPAG) Science Groups Meetings Cosmic Pathfinders Science Gaps Early Career Workshops Opportunities Missions Studies News & Events…

APOD Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss Visual Distortions Near a Neutron Star and Black Hole Robert J.

APOD Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss Great Debates The Scale of the Universe (1920); Curtis, Shapley Although the `Great Debate’ is important to different people for different reasons, it is a clear examp…

APOD Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss The Scale of the Universe What the Great Debate was, how it was resolved, and why it was important.

5 min read NASA Unveils Winning Designs for Mars Space Food Systems Challenge NASA announced the winners of the Deep Space Food Challenge: Mars to Table Thursday, with the top $300,000 prize being awarded to Chinyere Ukeje of Philadelphia, Pa. for the Ada…

APOD Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss to Internet newsgroup: sci.physics Answers posted by Matt McIrvin of Harvard University, last updated 02-FEB-1995.

NASA astronaut Jack Hathaway relocates sample processing hardware and prepares it for installation inside the International Space Station’s Destiny laboratory module.

3 min read NASA’s Machines for Mars Make Beer Bubbly A brewer makes adjustments to the Earthly Labs carbon-capture unit, which purifies carbon dioxide from the beer brewing process for use in carbonation.

APOD Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss by Robert Nemiroff (Michigan Technological University) Ever wonder what it would look like to travel to a black hole?

NASA/Ryan Kline In this Aug. 27, 2026, image, an Alta-X drone flies an advanced guidance and navigation system known as the Safe and Precise Landing – Integrated Capabilities Evolution (SPLICE) experiment near NASA’s Armstrong Flight Research Center in Ed…

In this animation, frames of NISAR data from December 2025 to August 2026 show the spread of lava from the northern crater of Krasheninnikov, a volcano pair on Russia’s Kamchatka Peninsula.

This close-up photo shows the engineering development unit for NASA’s DAVINCI (Deep Atmosphere Venus Investigation of Noble gases, Chemistry, and Imaging) probe.

Careers Careers Home Featured Careers Engineering Science and Research Business Services Data, IT, and Cyber Internship Opportunities Aspiring Astronauts Executive Leadership How To Apply Hiring Paths NASA Force Pathways Internship Program Veterans and Mi…

(April 30, 2026) — The SpaceX Crew-13 members are pictured in their pressure suits seated inside a mockup Dragon spacecraft during a preflight training session at the company’s headquarters in Hawthorne, California.

APOD Science APOD APOD: 2026 September 24 –… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss APOD Astronomy Picture of the Day Discover the cosmos!

Earth Observatory Science Earth Observatory Cloudy Cloak Over the Northwest Earth Earth Observatory Image of the Day EO Explorer Topics All Topics Atmosphere Land Heat & Radiation Life on Earth Human Dimensions Natural Events Oceans Remote Sensing Technol…

4 min read NASA Modernizes Commercial Airline Systems Testing at NASA’s Ames Research Center in California’s Silicon Valley in March 2026 demonstrated autonomous technology that could identify an incursion – a vehicle, wayward suitcase, or other runway ob…

Credit: NASA The Republic of Croatia became the 74th signatory to the Artemis Accords on Wednesday during a ceremony in the capital city of Zagreb with NASA and U.S.

Visualization as a Foundational Act of Placemaking: Future Places and Alien Worlds Date: Coming Soon Location: IEEE Vis Conference 2026 The Westlin Copley Place Boston, MA, USA IEEE VIS Conference 2026 about Visualization as a Foundational Act of Placemak…

Credit: NASA NASA announced Wednesday a mission to explore the history and evolution of the universe, PRIMA (PRobe far-Infrared Mission for Astrophysics), is advancing to the next phase of development.

NASA astronaut Anil Menon smiles for a portrait while conducting spacesuit maintenance inside the International Space Station’s Quest airlock.

A photo of the Dynamic Aviation A200 aircraft, which will conduct low-flying research flights over farmland near Greeley, Colorado, to measure emissions in October 2026.

Explore This Section Overview ROSES FAQ Blog ROSES Budget Redaction Grant Stats No Due Date Programs OSDMP FAQ Suborbital Program Program Officer List Volunteer to Review Proposals Dual-Anonymous Peer Review PRC FAQ Solicitations Solicitations Help & Supp…

Award: The American Geophysical Union’s Eugene Shoemaker Lecture is presented annually and recognizes excellence in planetary exploration.

An image from NASA’s Hubble Space Telescope of galaxy cluster MACS J0417 is part of repeated observations to monitor for the reappearance of supernova Athena, which can help astronomers measure the expansion rate of the universe.

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Daily images of ice cover in the Arctic Ocean show sea ice melting around the pole from March 15, 2026 to Sept. 12, 2026.

Explore This Section Overview ROSES FAQ Blog ROSES Budget Redaction Grant Stats No Due Date Programs OSDMP FAQ Suborbital Program Program Officer List Volunteer to Review Proposals Dual-Anonymous Peer Review PRC FAQ Solicitations Solicitations Help & Supp…

Astronaut Shannon W.

Explore This Section Earth Earth Observer Editor’s Corner Feature Articles Meeting Summaries News Science in the News In Memoriam Announcements Archives FFA 2026 Join NASA in the Exhibit Hall (Booth #648) for Hyperwall Storytelling by NASA experts.