Cosmos (category filter × )

Massive Stars Are Factories for Ingredients to Life
  • Massive amounts of water and organic molecules, never before seen, discovered in swirling, disk-shaped clouds surrounding young stars.
  • Young stars are produce life-inducing molecules, and It probably also happened during the formation of the sun and the inner planets of our solar system.
  • It was discovered through infrared observations of NASA’s airplane telescope, which demonstrates the power of infrared observatories to find simple organic compounds.
  • Celestial clouds collapse into a rotating disc of gas and dust to form stars, the chemical soup of organic molecules was found in the inner regions of these discs.
  • Further studies of massive young stars will help scientists understand the processes creating organic molecules.

Some planets may be better for life than Earth
  • 24 “superhabitable” planets have been identified outside our solar system, all more than 100 light years away.
  • Some of them are older, a bit bigger, a bit warmer, and might have more water than Earth.
  • Since new space telescopes are being finalized, these planets might be good candidates for observation.
  • The planets were chosen by geobiologists and astronomers from 4,500 potentially habitable planets, but we don’t know if they have life yet - only conditions for life.
  • One of the 24 planets meets four critical characteristics of a superhabitable planet - energy from a sun-like star, the right size, the right mass, and water.

Stellar explosion in Earth's proximity
  • Scientists found evidence of a supernova explosion near the Earth around 2.5 million years ago.
  • The conclusion is based on using accelerator mass spectrometry to analyse manganese crust samples that are around 2.5 million years old.
  • A supernova causes the formation of iron, manganese and other heavy elements, and scientists can identify a supernova by finding just a few of the right atoms.
  • They found manganese-53 which comes from cosmic dust that rains down on Earth, as opposed to manganese-55 that occurs on Earth.

If bacteria band together, they can survive for years in space
  • Tiny groups of bacteria as thin as five sheets of paper survived outside the International Space Station for 3 years.
  • This finding suggests that bacteria in groups might be able to drift in space and spread life on planets.
  • Study authors estimate that 1,000-micrometer pellets of bacteria could survive 8 years in space, which could be enough to potentially reach Mars.

Ringing of global atmosphere confirmed in UH research
  • The Earth’s entire atmosphere has rings similarly to a bell - at a low-pitched fundamental tone and many higher-pitched overtones.
  • We can’t hear it, but it happens in the form of large-scale waves of atmospheric pressure travelling east-to-west and vice-versa around the equator.
  • It is the first time that these waves have been observed, but the theory behind them has been refined over the past two centuries.
  • This opens up a new avenue of research that will lead to a better understanding of how this atmospheric ringing happens.




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