Three NASA-supported small spacecraft, shown along with many commercial payloads, before being encapsulated in a SpaceX Falcon 9. The rocket launched the payloads into low-Earth orbit at 11:32 a.m. PDT Thursday, Oct. 1, 2026, as part of the company’s Transporter-18 mission from Space Launch Complex 4 East at Vandenberg Space Force Base in California.
Read MoreLooking for a sky event this week? Check out our full Sky This Week column. October 13: Vesta at opposition Observers in the U.S. Midwest and farther west have a great opportunity this morning to watch one Galilean moon pass in front of another. Io crosses in front of Callisto, occulting it from our point of viewContinue reading “The Sky Today on Wednesday, October 14: Io covers Callisto”
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Read MoreWhat information is obtainable through gravitational lensing and how? Patrick A. CloughWichita, Kansas Gravitational lensing is the effect by which comparatively nearby objects, such as clusters of galaxies, can bend and focus the light of other objects that are more distant. Lensing is only possible because highly massive, and therefore gravitationally powerful, objects distort the space-time continuum around them. Continue reading “What can we learn from gravitational lensing?”
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Read MoreTwenty-one months after the deaths of the Apollo 1 crew in a fire during a test on the launchpad, the three men who had originally served as their backup crew — Walter Schirra Jr., Donn Eisele, and Walter Cunningham — flew on Apollo 7. The first manned American spaceflight since the accident, their mission wasContinue reading “Oct. 11, 1968: Apollo 7 launches”
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Read MoreGiovanni Passalacqua from Ragusa, Sicily, Italy A waning crescent Moon hangs less than 3° from Jupiter in western Leo before dawn on Oct. 6, 2026, hours before it occulted the planet for viewers in North America. All four Galilean moons flank Jupiter at lower left. The photographer shot a single 0.5-second exposure at f/6.3 andContinue reading “Jove and Luna”
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This NASA/ESA/CSA James Webb Space Telescope Picture of the Month features galaxies in incredible detail that have been warped and multiplied like they’ve stepped into a house of mirrors.
Read MoreNASA has selected a mission proposal that will peer below a volcanic pit on the Moon to find out whether it opens onto a hidden lava tube — a geologic formation long theorized, but never confirmed on the Moon. The proposal will send a mission to the Marius Hills Pit, a large hole — approximatelyContinue reading “Newly selected NASA mission will hunt for caves on the Moon”
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The SpaceX Crew Dragon Freedom spacecraft is seen as it lands with NASA astronauts Jessica Meir and Jack Hathaway, ESA (European Space Agency) astronaut Sophie Adenot, and Roscosmos cosmonaut Andrey Fedyaev aboard in the Pacific Ocean off the coast of Los Angeles, Calif., Thursday, Oct. 8, 2026.
Read MoreNASA has selected the far-infrared space telescope mission PRIMA (PRobe far-Infrared Mission for Astrophysics) to move to the next stage in its development. PRIMA will be the first in a new mission class and help scientists learn more about the evolution of the universe. PRIMA will carry a 5.9-foot (1.8-meter) mirror, and NASA hopes toContinue reading “Far-infrared telescope PRIMA advances toward 2033 launch”
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A visualization of a dark Moon eclipsing the Sun is marked with handwritten notes in this April 6, 2026, screenshot from an Artemis II crew member’s tablet.
Read MoreThe Crab Nebula Our first object is the Crab Nebula in Taurus. It’s one of the sky’s most famous objects, and a nice small telescope target. Although the word “nebula” is part of this object’s name, astronomers classify M1 as a supernova remnant. In 1054, a brilliant new star 4 times brighter than Venus appearedContinue reading “Winter observing targets for small telescopes”
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This artist’s concept depicts a possible explanation for the unusual chemical abundances NASA’s Hubble Space Telescope detected in the HS 0209+0832 system: a second-generation planet orbiting the white dwarf star.
Read MoreThe Royal Swedish Academy of Sciences awarded Francis Halzen, principal investigator of the IceCube Neutrino Observatory and professor of physics at the University of Wisconsin-Madison, the Nobel Prize in physics on Oct. 6, 2026. Halzen’s work on high-energy neutrinos has shaped our understanding of the universe’s mysterious and powerful natural particle accelerators. Halzen is theContinue reading “Francis Halzen wins the 2026 Nobel Prize in physics”
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NASA astronaut and mission specialist of the agency’s Artemis II mission, Christina Koch, led the fans in singing the Eagles Fight Song from the field at an NFL game between the Philadelphia Eagles and the Los Angeles Rams at Lincoln Financial Field on Sunday, Oct. 4, 2026, in Philadelphia.
Read MoreRocket launches this week On Tuesday, Oct. 6, SpaceX will launch the Tranche 1 Transport Layer A mission for the U.S. Space Development Agency (SDA) from Vandenberg Space Force Base in California at 4:17 a.m. EDT. The Falcon 9 will carry satellites for SDA’s Transport Layer, a network of military satellites in low Earth orbit.Continue reading “South Korea, SpaceX, and China ready for launch this week”
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Read MoreOn Oct. 4th, 1957, at 10:29 PM Moscow time, the Soviet Union successfully launched Sputnik 1 into space on a repurposed R-7 rocket. The world’s first artificial satellite, Sputnik was about 22 inches (58 centimeters) in diameter and weighed 184 pounds (84 kilograms). Although there were no scientific instruments aboard, the transmitter it carried sentContinue reading “Oct. 4th, 1957: Sputnik launches”
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An engineering model of NASA’s DAVINCI (Deep Atmosphere Venus Investigation of Noble gases, Chemistry, and Imaging) descent probe passed a key test that ran from Aug. 28 to Sept. 10, showing it can survive the extreme temperatures of Venus.
Read MoreA 12-ton rocket loaded with a 1-ton warhead, the V-2’s successful launch would prove to be exceptionally significant to both the military and to space exploration. On Oct. 3, 1942, the V-2 was fired from Peenemunde, Germany – its fourth test, and the first to succeed. The rocket rose to an altitude of 60 milesContinue reading “Oct. 3, 1942: The V-2 successfully launches”
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Read MoreIf a train leaves the station in Exeter, England, headed south toward Newton Abbot five years before the railway line opens, how long until anyone figures out that it didn’t happen? Well, evidently about 155 years. A report on magnetic storms, published in Nature in 1871, described an incident thought to be the earliest recordedContinue reading “Case closed on long-standing space weather mystery”
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A SpaceX Falcon 9 rocket carrying the company’s Dragon spacecraft is launched on NASA’s SpaceX Crew-13 mission to the International Space Station with NASA astronauts Jessica Watkins and Luke Delaney, CSA (Canadian Space Agency) astronaut Joshua Kutryk, and Roscosmos cosmonaut Sergey Teteryatnikov aboard, Thursday, Oct. 1, 2026, from Cape Canaveral Space Force Station in Florida.
Read MoreMake sure to set your alarm clock early on the morning of Tuesday, Oct. 6, so that you won’t miss a rare and spectacular celestial event. The brilliant planet Jupiter and its retinue of Galilean satellites will pass behind the waning Moon, a 20%-illuminated crescent just 4¼ days before New. Astronomers call this phenomenon anContinue reading “See the Moon occult Jupiter October 6”
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This long-duration image shows star trails above Earth and the blue lights of fishing boats and the yellow lights of Indonesian cities stretching below the International Space Station as it orbited 258 miles above the Banda Sea.
Read MoreMission Highlight: Starship Flight 14 After 13 previous suborbital test flights, Starship finally reached orbit on test flight 14. SpaceX’s launch window opened at 8:15 a.m. EDT on Monday, Sept. 28, and the rocket cleared the tower at Starbase, Texas, at 8:48 a.m. EDT. Just over three hours later, the flight ended in a fireballContinue reading “Starship reaches orbit on 14th test flight”
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Ahead of launch of NASA’s SpaceX Crew-13 mission, a SpaceX Falcon 9 rocket, with the Dragon spacecraft atop, is vertical at the launch pad of Space Launch Complex 40 at Cape Canaveral Space Force Station in Florida on Sunday, Sept. 27, 2026.
Read MoreThe Edge of Space-Time: Particles, Poetry, and the Cosmic Dream Boogie The Knopf Doubleday Publishing GroupNew York, New York In The Edge of Space-Time: Particles, Poetry, and the Cosmic Dream Boogie, Chanda Prescod-Weinstein — professor of physics at the University of New Hampshire and the first Black woman to earn tenure in theoretical cosmology —Continue reading “New astronomy products to fall for this month”
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This nighttime view of the United States, dotted with city lights looking toward New York City (center), was taken at approximately 3:40 a.m. local time from the International Space Station as it orbited 259 miles above Earth.
Read MoreAt 10:58 AM on Sept. 28, 1969, residents of the small Australian farming community of Murchison, Victoria, heard a series of loud booms. The noise was accompanied by a strong smell and a streak of smoke in the sky. A carbonaceous chondite meteorite, the Murchison Meteorite broke up as it entered the atmosphere, and thusContinue reading “Sept. 28, 1969: The Murchison Meteorite explodes over Australia”
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Read MoreBorn Sept. 27, 1918, and educated at Bradfield College and Oxford University in the U.K., Martin Ryle would go on to be the first astronomer royal (1972-1982) with a background in radio astronomy. During World War II, Ryle worked in radio systems and countermeasures for the RAF. He was strongly antiwar, though, and had noContinue reading “Sept. 27, 1918: The birth of Martin Ryle”
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NASA astronaut and commander of the agency’s Artemis II mission, Reid Wiseman, a Baltimore native, takes a selfie with fans at an NFL game between the New Orleans Saints and the Baltimore Ravens at M&T Bank Stadium, Sunday, Sept. 20, 2026, in Baltimore.
Read MoreResembling a lumpy chunk of coral floating through space, Hyperion is one of the weirdest moons not just of Saturn, but in the whole solar system. Its shape is irregular, its rotation is chaotic, and it looks oddly spongelike. On Sept. 26, 2005, Cassini completed its first flyby of this bizarre moon, giving NASA bothContinue reading “Sept. 26, 2005: Cassini visits Saturn’s weirdest moon”
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Though the spiral galaxy in this ESA/Hubble Picture of the Month seems serene, it hides a chaotic secret.
Read MoreThe Full Moon closest to the autumnal equinox hides an added bonus: more moonlight for your money.
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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 Edwards, California, on Thursday, Aug. 27, 2026.
Read MoreOn Sept. 24, 1970, Luna 16 blazed a new trail in lunar sample collection – one traversed by robots. Although the Apollo astronauts had collected lunar samples on their missions, Luna 16 was the first instance of samples being gathered and returned to Earth fully robotically, with no astronauts (or cosmonauts) involved. After blasting offContinue reading “Sept. 24, 1970: Luna 16 brings back regolith”
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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.
Read MoreLooking for a sky event this week? Check out our full Sky This Week column. September 22: The autumnal equinox The bright Moon stands prominently in Aquarius the Water-bearer this evening, quickly waxing toward Full. Swing your scope up toward Earth’s lone satellite tonight and focus in on a point just east of the terminator dividing nightContinue reading “The Sky Today on Wednesday, September 23: Around Reiner Gamma”
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Using NASA’s Chandra X-ray Observatory, scientists have discovered a new class of objects behaving unlike any they have seen before.
Read MoreRiccardo Maffioli from Albizzate, Varese, Italy The Soap Bubble Nebula (PN G75.5+1.7 or PN Ju 1), a little-studied planetary nebula in Cygnus near the better-known Crescent Nebula, is the shell cast off by a dying Sun-like star. Its near-perfect sphere, roughly 4′ across was only discovered in 2008; its faintness and position against other emissionContinue reading “A bubble adrift”
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Read MoreLooking for a sky event this week? Check out our full Sky This Week column. September 20: Juno’s movement Rising around 7:30 P.M. local daylight time, Saturn reaches an altitude above 40° in the southeast by local midnight. Visible to the naked eye, it is the brightest point of light in this region of the sky, sittingContinue reading “The Sky Today on Monday, September 21: Saturn passes a field star”
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Read MoreLooking for a sky event this week? Check out our full Sky This Week column. September 19: Mars meets Pollux Now is the best time to catch 145-mile-wide 3 Juno as it passes through a random collection of 9th- and 10th-magnitude stars. Now located in far southern Aquila near its border with Sagittarius, Juno glows at magnitude 9.6.Continue reading “The Sky Today on Sunday, September 20: Juno’s movement”
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UC Berkeley engineers and managers watch as the COSI (Compton Spectrometer and Imager) detector assembly is slowly raised from a table in this July 8, 2026, image.
Read MoreLooking for a sky event this week? Check out our full Sky This Week column. September 18: The Lizard’s brightest cluster Mars passed 6° due south of Pollux in Gemini at midnight on the 18th, and they now rise together in the early-morning sky. An hour before sunrise, the heads of Gemini have reached an altitude ofContinue reading “The Sky Today on Saturday, September 19: Mars meets Pollux”
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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.
Read MoreFriday, September 18First Quarter Moon occurs at 4:44 P.M. EDT. The Moon then reaches apogee, the farthest point from Earth in its orbit, at 11 P.M. EDT. At that time, our satellite will be 251,171 miles (404,221 kilometers) away. Venus reaches greatest brilliancy at 9 P.M. EDT, shining at magnitude –4.8. It’s bright and easyContinue reading “The Sky This Week from September 18 to 25: Autumn begins”
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Anak Krakatau erupts ash and volcanic gases in this image acquired with the OLI (Operational Land Imager) on Landsat 8 on Sept. 5, 2026.
Read MoreToday I’ll be telling you about 10 of my favorite autumn deep-sky objects, with suggestions for viewing them. I hope you’ll enjoy this list, and I’ll share some other deep-sky favorites of mine from time to time in the future. What’s a large telescope? The notion of what’s big changes from observer to observer, butContinue reading “Autumn observing targets for large telescopes”
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NASA astronaut Randy Bresnik (left) and ESA (European Space Agency) astronaut Luca Parmitano view progress on the solid rocket booster integration in High Bay 3 inside the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida on Wednesday, Sept. 2, 2026.
Read MoreIn a groundbreaking announcement, the U.S. Space Force stated publicly on Monday, Sept. 14, that it currently has on-orbit weapons in space. Department of the Air Force Secretary Troy Meink’s keynote address at the 2026 Air and Space Cyber Conference focused on plans to modernize the Air Force against AI-powered weapons and capabilities wielded byContinue reading “U.S. confirms it has weapons in orbit”
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Fans pose for a photo with an astronaut in the NASA Experience Zone at an NFL game between the Pittsburgh Steelers and the Atlanta Falcons at Acrisure Stadium, Sunday, Sept. 13, 2026, in Pittsburgh, Pennsylvania.
Read MoreRocket launches this week On Monday, Sept. 14 at 9:21 p.m. EST, Avio — a publicly traded Italian aerospace company headquartered near Rome — is set to launch a Vega C rocket from the Guiana Space Centre in French Guiana, carrying two Earth-observation satellites for the European Space Agency (ESA). The first, Sentinel-3C, is theContinue reading “Europe launches two Earth-observation satellites amidst a busy week for China”
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