SpaceX sets new rocket-reuse record on launch of US spy satellites (video)
SpaceX sets new reuse record with spy satellite launch | Space Quiz! What element do scientists think predominantly filled the early universe? | Dark energy is even stranger than we thought
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SpaceX set a new rocket-reuse record early Friday morning (March 21).A Falcon 9 rocket lifted off from California's Vandenberg Space Force Base Friday, on the NROL-57 mission for the U.S. National Reconnaissance Office (NRO). The rocket's first stage also lofted the SPHEREx space telescope and PUNCH solar probes for NASA on March 11, according to a SpaceX mission description. NROL-57 was therefore the booster's second launch in a little over nine days, besting the previous Falcon 9 turnaround record of 14 days.
New results from the Dark Energy Spectroscopic Instrument (DESI) suggest that the unknown force accelerating the expansion of the universe isn't what we believed it to be. This hints that our best theory of the universe's evolution, the standard model of cosmology, could be wrong.
A partial solar eclipse will occur at sunrise in North America and mid-morning across Europe on March 29, 2025. One of the most cost effective and safest ways to view the eclipse or for general safe sungazing is with a pair of the best solar eclipse glasses.
(ALMA (ESO/NAOJ/NRAO)/S. Carniani et al./S. Schouws et al/JWST: NASA, ESA, CSA, STScI, Brant Robertson (UC Santa Cruz), Ben Johnson (CfA), Sandro Tacchella (Cambridge), Phill Cargile (CfA))
Astronomers have found oxygen in the farthest, and thus the earliest, galaxy ever seen. This marks the most distant detection of oxygen ever made by humanity.
Engineers and astronomers at the University of Utah have designed a unique new kind of telescope lens: a flat lens with microscopic etchings to refract light. If the concept can be scaled up, these lenses could one day replace the heavier, bulkier lenses and mirrors typically used in telescopes, particularly those of professional observatories on the ground and in space. Down the line, they could also be implemented on amateur telescopes, the team says.
Scientists are confident Mars was once abundant with water, as seen in massive flood-carved channels, ancient river valleys, and minerals that form only in liquid water. But how the Red Planet lost its water, leaving behind the arid world we see today, is still up for debate.
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