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News
Venus’s pale yellow clouds may hide something surprisingly dark
57+ min ago (953+ words) Venus looks pale yellow in ordinary visible light, but the view changes dramatically in ultraviolet wavelengths. There, dark and bright features sweep across the planet's upper sulfuric acid clouds. Scientists have observed these patterns for about a century, yet the…...
Known physics suggests the early universe should have produced matter and antimatter in equal amounts. Nearly all of it annihilated into radiation, but roughly one extra matter particle survived for every billion pairs—and why that tiny imbalance existed remains one of physics’ deepest unsolved problems.
2+ hour, 11+ min ago (906+ words) The measured net baryon-to-photon ratio is about 6.1 parts in ten billion. Physics can describe the required ingredients for that excess, but no confirmed mechanism made it....
A New Catalog of Close to 3,000 Supernova Challenges Theories on Dark Energy
2+ hour, 47+ min ago (88+ words) The most comprehensive catalogue of exploding white dwarf stars ever assembled has revealed new clues about dark energy, the mysterious force driving the universe’s accelerating expansion....
Space News: NASA rocket takes first multi-point look inside radio-disrupting clouds
1+ week, 1+ day ago (474+ words) High above Earth, thin veils of metallic haze drift through the edge of space. Known as sporadic E layers, these high-altitude “clouds” form from the vaporized dust of burnt-up meteors, earning their name from the unpredictable way they emerge and…...
The Universe Changed Its Mind About Expansion
2+ min ago (29+ words) For billions of years, expansion slowed. Then something changed. About six billion years ago, the Universe crossed a strange cosmic threshold. Nothing …...
Astronomers Spotted a 'Bear' on Mars
4+ hour, 41+ min ago (186+ words) On 12 December 2022, an orbiter traveling 251 kilometers (156 miles) above the southern highlands of Mars photographed a hill....
Open-Source Trifilar Pendulum Brings Low-Cost Inertia Testing to Small
49+ min ago (691+ words) Every spacecraft that tumbles, spins, or reorients itself in orbit does so according to a property that engineers cannot afford to guess: the mass moment of inertia....
NASA Answers President Trump???s Call to Establish the United States Space Academy
2+ day, 4+ min ago (439+ words) NASA-led work is in full swing to make the academy a reality and shape the future of America’s aerospace workforce and leadership. Home » Home » NASA Answers President Trump’s Call to Establish the United States Space Academy Executive Order was signed…...