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APOD: 2026 September 18 – Messier 33: The Triangulum Galaxy

2026-09-18 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.

Messier 33: The Triangulum Galaxy

Explanation: The small, northern constellation Triangulum harbors this magnificent face-on spiral galaxy, Messier 33. Its popular names include the Pinwheel Galaxy or just the Triangulum Galaxy. M33 is over 50,000 light-years in diameter, third largest in the Local Group of galaxies after the Andromeda Galaxy (M31), and our own Milky Way. About 3 million light-years from the Milky Way, M33 is itself thought to be a satellite of the Andromeda Galaxy and astronomers in these two galaxies would likely have spectacular views of each other’s grand spiral star systems. As for the view from the Milky Way, this sharp telescopic image shows off M33’s blue star clusters and pinkish star forming regions along the galaxy’s loosely wound spiral arms. In fact, the cavernous NGC 604 is the brightest star forming region, seen here at about the 5 o’clock position from the galaxy center. Like M31, M33’s population of well-measured variable stars have helped make this nearby spiral a cosmic yardstick for establishing the distance scale of the Universe.

APOD’s main NASA site is moving: From apod.nasa.gov to science.nasa.gov/apod
Tomorrow’s picture: star party weekend

Date	September 18, 2026
Credit & Copyright:	George Chatzifrantzis
Authors & editors:	Jerry Bonnell, Cecilia Chirenti, Robert Nemiroff, Keighley Rockcliffe
A service of:	ASD at NASA / GSFC, NASA Science Activation & Michigan Tech. U.

Yesterday’s Image

APOD: 2026 September 17 – A Treasure Chest in the Carina Nebula

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NASA Awards Launch Services for StarBurst Gamma-Ray Detector

2026-09-17 20:37

Credit: NASA

NASA has selected SpaceX to provide launch services for the agency’s StarBurst mission, a small satellite designed to investigate neutron star mergers and the origins of short gamma-ray bursts.

StarBurst will launch aboard a Bandwagon rideshare mission on a Falcon 9 rocket from Space Launch Complex 40 at Cape Canaveral Space Force Station in Florida no earlier than 2028.

The selection is a firm-fixed-price task order under NASA’s VADR (Venture-Class Acquisition of Dedicated and Rideshare) launch services contract. This indefinite-delivery/indefinite-quantity contract allows NASA to acquire launch services during a 10-year ordering period, with a maximum total value of $1 billion across all contracts.

The StarBurst mission is designed to observe the entire portion of the sky not blocked by Earth to search for brief, powerful explosions called gamma-ray bursts. The satellite will focus on detecting the initial high-energy emission from short gamma-ray bursts, which occur when dense stellar remnants called neutron stars merge.

By combining StarBurst’s observations with gravitational-wave measurements and follow-up observations from other telescopes, researchers will study these events through multiple types of signals, an approach known as multimessenger astronomy.

StarBurst is part of NASA’s Astrophysics Pioneers Program, which supports lower-cost investigations using small spacecraft and other platforms.

NASA’s Launch Services Program Office, based at the agency’s Kennedy Space Center in Florida, manages the VADR contract.

For more information about NASA’s StarBurst, visit:

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

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Joshua Finch / Jimi Russell
Headquarters, Washington
202-358-1100
joshua.a.finch@nasa.gov / james.j.russell@nasa.gov

Leejay Lockhart
Kennedy Space Center, Fla.
321-747-8310
leejay.lockhart@nasa.gov

Details

Last Updated

Sep 17, 2026

Editor

Jessica Taveau

Location

NASA Headquarters

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NASA Invites Media to SpaceX’s 35th Resupply Launch to Space Station

2026-09-17 18:32

A SpaceX Falcon 9 rocket launches on May 15, 2026, carrying about 6,500 pounds of science, supplies, and equipment to the International Space Station during the company’s 34th commercial resupply mission for NASA.

Credit: NASA

Media accreditation is open for the next cargo launch that will deliver NASA science investigations, supplies, and equipment to the International Space Station. The 35th SpaceX commercial resupply services mission to the orbital laboratory for NASA will lift off on a Falcon 9 rocket.

NASA and SpaceX are targeting no earlier than October to launch the SpaceX Dragon spacecraft from Cape Canaveral Space Force Station in Florida.

Credentialing to cover prelaunch and launch activities is open to U.S. media only. The application deadline is 11:59 p.m. EDT, Thursday, Oct. 1. All accreditation requests must be submitted online at:

https://media.ksc.nasa.gov

Media will receive a confirmation email upon approval. NASA’s media accreditation policy is available online. For questions about accreditation, or to request special logistical support, email: ksc-media-accreditat@mail.nasa.gov. For other questions, please contact NASA’s Kennedy Space Center newsroom at: 321-867-2468.

Each resupply mission to the station delivers scientific investigations in biology and biotechnology, Earth and space science, physical sciences, and technology development and demonstrations. Cargo resupply from U.S. companies ensures a national capability to deliver scientific research to the space station, significantly increasing NASA’s ability to conduct new investigations aboard humanity’s laboratory in space.

In addition to food, supplies, and equipment for the crew, Dragon will deliver the final sets of International Space Station Roll-Out Solar Arrays, called IROSA, which astronauts will install during future spacewalks to complete station’s power augmentation. Once installed, the arrays will provide additional power to support critical station operations, including its safe and controlled deorbit.

The mission also will transport several new experiments to the orbital complex, including hardware to manufacture artificial retinas in microgravity that could help restore vision for patients on Earth and 3D heart cell models to advance large-scale drug testing on future space missions. Dragon also will carry materials to study how a new type of glass is formed in microgravity, and brain organoids that could uncover potential treatment targets for neurodegenerative diseases like Alzheimer’s, Parkinson’s, and multiple sclerosis.

For more than 25 years, people have lived and worked continuously aboard the International Space Station, advancing scientific knowledge and making research breakthroughs not possible on Earth. The space station helps NASA understand and overcome the challenges of human spaceflight, expand commercial opportunities in low Earth orbit, and build on the foundation for long-duration missions to the Moon, as part of the Artemis program, and to Mars.

Learn more about NASA’s commercial resupply missions at:

https://www.nasa.gov/station

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Josh Finch / Jimi Russell
Headquarters, Washington
202-358-1100
joshua.a.finch@nasa.gov / james.j.russell@nasa.gov

Steven Siceloff
Kennedy Space Center, Fla.
321-876-2468
steven.p.siceloff@nasa.gov

Sandra Jones / Joseph Zakrzewski
Johnson Space Center, Houston
281-483-5111
sandra.p.jones@nasa.gov / joseph.a.zakrzewski@nasa.gov

Details

Last Updated

Sep 17, 2026

Location

NASA Headquarters

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NASA Unveils Enterprise, the First Space Shuttle

2026-09-17 15:22

The Shuttle Enterprise (Orbiter Vehicle 101) rolls out of the Palmdale manufacturing facilities with Star Trek television cast members. From left to right they are: Dr. James D. Fletcher, NASA Administrator, DeForest Kelley (Dr. "Bones" McCoy), George Takei (Mr. Sulu), James Doohan (Mr. Scott), Nichelle Nichols (Lt. Uhura), Leonard Nimoy (the indefatigable Mr. Spock), Gene Rodenberry (The Great Bird of the Galaxy), and Walter Koenig (Ensign Pavel Chekov).

The rollout ceremony for NASA’s first space shuttle, OV-101, coincided with Constitution Day of the nation’s bicentennial on Sept.17, 1976. Although the orbiter was originally planned to be named Constitution, Star Trek fans successfully convinced President Gerald Ford to name it Enterprise after the series’ fictional starship.

NASA

Fifty years ago, on Sept. 17, 1976—Constitution Day of America’s bicentennial year—NASA unveiled its first space shuttle orbiter, OV-101, to the public. NASA had originally planned to name the vehicle Constitution, but a letter-writing campaign changed the agency’s plans. Nearly 100,000 fans of the Star Trek television series wrote the White House urging that the shuttle be named after the USS Enterprise, the fictional starship featured in the series. In a memo, President Gerald Ford directed NASA to christen the shuttle Enterprise saying he was “partial to the name”. The name Enterprise, long celebrated in U.S. naval history, had earlier been bestowed on the first nuclear-powered carrier, a World War II carrier, and an American vessel of the Revolutionary War.

Hundreds of invited guests attended the rollout ceremony at Rockwell’s Palmdale facility in southern California, including Star Trek creator Gene Roddenberry and several cast members. Pictured from left to right in this photo are NASA Administrator James C. Fletcher, DeForest Kelley (Dr. “Bones” McCoy), George Takei (Mr. Sulu), James Doohan (Chief Engineer Montgomery “Scotty” Scott), Nichelle Nichols (Lt. Uhura), Leonard Nimoy (Mr. Spock), series creator Gene Rodenberry, U.S. Rep. Don Fuqua (D.-Fla) and Walter Koenig (Ensign Chekov).

Even though Enterprise was not designed to fly in space, it performed the essential atmospheric test flights that paved the way for the shuttle program’s first spaceflights in 1981. The orbiter is now on display at the Intrepid Museum in New York City.

Learn more about the historic rollout of NASA’s first space shuttle.

Credit: NASA

APOD: 2026 September 17 – A Treasure Chest in the Carina Nebula

2026-09-17 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.

A colorful nebula resembles an open treasure chest on a field of stars

A Treasure Chest in the Carina Nebula

Explanation: This treasure chest is full of stars. The featured image was obtained with NASA‘s James Webb Space Telescope and shows a dust pillar in the Carina Nebula inside our Galaxy, roughly 7500 light-years away. It is formed by interstellar gas and dust, and shaped by powerful stellar winds and radiation from neighboring stars like the nearby Eta Carinae stellar system which is more luminous than 5 million suns. The star formation inside the pillar is excavating its head, creating the open lid of the chest. Astronomers estimate that there are about 70 stars in a compact cluster inside the pillar. This cluster is now thought to be only around 1.3 million years old. Its bounty of young stars includes a massive star approximately 19 times as massive as the Sun. More massive stars are rarer, shine brighter and evolve faster than less massive stars. They are the shiniest jewels in the treasure chest.

APOD’s main NASA site is moving : From apod.nasa.gov to science.nasa.gov/apod
Tomorrow’s picture: The Triangulum Galaxy

Date	September 17, 2026
Credit	ESA/Webb, NASA & CSA, M. Reiter; Acknowledgement: M. H. Özsaraç
Authors & editors:	Cecilia Chirenti, Robert Nemiroff, Jerry Bonnell, Keighley Rockcliffe
A service of:	ASD at NASA / GSFC, NASA Science Activation & Michigan Tech. U.

Yesterday’s Image

APOD: 2026 September 16 – Webb’s View of M64

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TechCrunch - Latest

Khosla-backed Mazama Energy just raised $135M to drill deeper into super-hot-rock geothermal

2026-09-18 00:02

Geothermal startup Mazama is drilling three miles underground to tap superhot rock, with one well capable of generating 15 MW of electricity 24/7.

Crusoe raises $3.9B to build massive data centers and small modular ‘AI factories’

2026-09-17 23:25

The round values the data center giant at $30.9 billion.

Google DeepMind launches institute to widen the AGI debate

2026-09-17 23:21

The new institute aims to surface differing views between Google, Google DeepMind, and the broader global research community around AGI. "They will not always agree, and they will likely change their minds, as more data and information comes to light at the fast-moving frontier."