A negative leap second could mean computer systems no longer run like clockwork. Credit: Florian Gaertner/Photothek/Getty The leap second could be scrapped as soon as October. The periodic adjustment to the world’s clocks, which has been done every few years since 1972, was already set to end by 2035. But authorities are considering an immediate
Explanation: A new telescope has been launched into space to study the universe. The Nancy Grace Roman Space Telescope (RST) has the same size main mirror as the Hubble Space Telescope (HST) but sees 100 times more sky during each snapshot. This is possible because when compared to HST, RST’s main mirror is more curved,
The field of view of the Nancy Grace Roman Space Telescope (artist’s illustration) will be roughly 100 times bigger than that of the Hubble Space Telescope. Credit: NASA/Handout via Reuters The largest infrared digital camera ever built and its scientific companion, a massive mirror originally designed for a spy satellite, are now safely in orbit,
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Five antennas soak in the summer sun at the Deep Space Network’s Goldstone complex near Barstow, California, in August 2026. The recently completed Deep Space Station 23, a 34-meter (114-foot) beam-waveguide antenna, can be seen to the right of the frame in the foreground. The other three 34-meter antennas are, from left, DSS-26, DSS-25, and DSS-24.
Long shadows are cast by the recently completed Deep Space Station 23 at the Deep Space Network’s Goldstone complex near Barstow, California, in August 2026. A 34-meter (114-foot) multifrequency beam-waveguide antenna, DSS-23 will boost the DSN’s capacity and enhance NASA’s deep space communications capabilities for decades to come. NASA leadership and personnel as well as