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A century-old theory about the origins of life on Earth may be wrong. New research from the University of Cambridge suggests that comets traveled too fast and struck at unfavorable angles for the fragile molecules needed for life to survive, making successful delivery extraordinarily unlikely. Surprisingly, Mars may have had a better chance of receiving these cosmic ingredients, although even there the odds were slim. The findings point toward asteroids or chemical processes on Earth as more plausible sources of…
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Upgrade this serverAround 12 million light-years away, the supermassive black hole of the galaxy Centaurus A is hurling two enormous plasma jets into space at nearly the speed of light. These so-called jets are brighter at their edges than at their center. The reason for this was previously unclear but has now been explained by a team from the Chair of Astronomy at the University of Würzburg. The research is published in the journal Astronomy & Astrophysics.
5 hours ago · phys.org
Samples from the Bennu asteroid, which is currently more than 200 million miles (322 million kilometers) from Earth, and the Murchison meteorite, which fell to Earth in 1969, both contain molecules that build proteins necessary for life. New research has found that the molecules may have formed through the same process but originated far from one another in the solar system.
8 hours ago · phys.org
Earth’s spot in the Milky Way galaxy is about as good as it gets – but there are other possibilities
9 hours ago · independent.co.uk
The oldest pair of compact quasars ever observed has been found only 900 million years after the Big Bang. Scientists say there is no theoretical explanation for how the pair of actively feeding black holes grew so massive at such an early time in the history of the universe. The pair of quasars has been given the Hawaiian nickname Nāpōwawāʻenakaulua.
21 hours ago · phys.org
The LISA (Laser Interferometer Space Antenna) observatory, now in development, will detect gravitational waves, the tiny ripples in space-time caused by orbiting masses. Now two studies led by NASA astrophysicists show in new detail how LISA could reveal a new and unique population of exoplanets—worlds beyond our solar system—throughout our galaxy.
22 hours ago · phys.org
A breakthrough in telescope imaging could reveal countless alien worlds that have been hiding in plain sight. Scientists developed a new technique that uses a digital twin of the James Webb Space Telescope to remove the overwhelming glare of stars, making faint exoplanets two to 15 times easier to detect than with conventional methods. The technology has already uncovered a previously hidden planet in existing telescope data and could reveal many more.
22 hours ago · sciencedaily.com
Astronomers have solved the mystery of an exoplanet that "disappeared" after seven years of observations.
Yesterday · space.com
Astronomers may have solved one of the biggest mysteries uncovered by NASA's James Webb Space Telescope (JWST), using sophisticated simulations to show that enigmatic objects known as "little red dots" (LRDs) are likely the birthplaces of the first supermassive black holes.
Yesterday · phys.org
When the most massive stars in the universe die, they often detonate in fiery supernovae, dramatically blasting most of their matter into space. The remaining stellar cores collapse into neutron stars and, sometimes, black holes. However, theories suggest that some massive stars might die without a bang, instead directly collapsing inward to become neutron stars or black holes.
Yesterday · phys.org
Scientists have discovered that Earth has temporarily gained a second moon, although the tiny asteroid is expected to leave our planet’s orbit within the next few months.
Yesterday · dexerto.com
Lika online · 2 days ago
Znanstvenici doveli u pitanje teoriju o nastanku života na Zemlji: Kometi su možda uništavali ono što su trebali donijetiScienceDaily · Yesterday
Fóssil de dinossauro de 167 milhões de anos será leiloado por mais de R$ 2 milhõesThe Independent Astronomers find first ever disappearing planet
Live Science Gravity can reconnect like the sun's magnetic field, a fresh look at Einstein's equations reveals
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