Infrastructure


As Experts Debate Leap Seconds, Universal Time Tangle Grows in Importance

Sundials like this one at the Royal Museum at Greenwich, England, have given way to atomic clocks. But arguments about time remain. Credit: Royal Museum GreenwichSundials like this one at the Royal Museum at Greenwich, England, have given way to atomic clocks. But arguments about time remain. Credit: Royal Museum Greenwich

Time, the measurement that science still has difficulty explaining, has allowed everything from transatlantic exploration to space travel and now is the fabric that holds together financial institutions, supply chains and the internet. But if you counted down the closing seconds of 2023 with New Year’s revelers, you were almost certainly wrong.

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Facing Safety, Budget Concerns, NASA Delays Artemis Moon Missions

With budget cuts on the horizon and technical hurdles to vault before astronauts return to the Moon, NASA pushed the brakes on its Artemis program launch schedule Tuesday, delaying a planned lunar fly-by mission into 2025 and its planned landing into 2026. The agency cited safety concerns for the delay, including an ongoing investigation into problems with a heatshield, which was damaged when the uncrewed Artemis I capsule re-entered Earth’s atmosphere after a 2022 test flight. The move also comes as congressional negotiators mull slimming the agency’s budget by more than $500 million from its 2023, and $2.2 billion short of NASA’s 2024 budget request.

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With Maiden Flight, ULA’s Vulcan Joins 2024’s Stampede to Space

ULA's Vulcan launch vehicle blasts skyward for its maiden flight early Monday, Jan. 8, 2024. Credit: ULAULA's Vulcan launch vehicle blasts skyward for its maiden flight early Monday, Jan. 8, 2024. Credit: ULA

United Launch Alliance’s Vulcan launch vehicle successfully roared aloft Monday on its maiden flight from Florida, carrying lunar payloads and keeping up a blistering pace of spaceflight that could drive 2024 past annual records for payloads sent to space and launches set in 2023. The first eight days of 2024 have seen four launches from the United States, including three by SpaceX, along with missions to orbit from India and China.

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Launch Log, 2024

Interested in this year’s global space activity? Keep track of orbital launch trends with our 2024 launch log. Launch data is updated every day during weekdays, excluding U.S. holidays.

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Second Starship Test Flies Higher Before Failure

With 33 Raptor engines belching flame, SpaceX’s Starship demonstrated the full power of its main booster, reaching an altitude of 91 miles before the second uncrewed attempt to launch the massive rocket from Boca Chica, Texas, ended when the second stage apparently failed.

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ESA’s Euclid Telescope Reveals First Images of the Stars

The Horsehead nebula as seen by ESA's Euclid spacecraft. Credit: ESA.The Horsehead nebula as seen by ESA's Euclid spacecraft. Credit: ESA.

The European Space Agency released an initial batch of full-color images from its Euclid space telescope, showing the capability of the spacecraft’s 600-megapixel camera, which will be used on Euclid’s planned six-year mission to measure the accelerating expansion of the universe.

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