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Earth system scientists
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- 1Scientists warn key planetary boundaries have been breached●'Planetary boundaries' necessary for flourishing of life have been breached
New scientific reporting indicates that the 'planetary boundaries' required for life on Earth to flourish have been crossed, according to coverage in The Guardian. Scientists warn that breaching these thresholds — which include climate change, biodiversity loss and other Earth-system limits — increases the risk of irreversible environmental damage. Readers are debating the findings and what they imply for policy and everyday life.
- 2First radio waves detected from an exoplanet hint at alien auroras●First radio waves seen from an exoplanet hint at otherworldly auroras # science # astronomy https://www. sciencenews.org
Astronomers have picked up radio waves from an exoplanet for the first time, a signal that could indicate auroras similar to those seen on Earth and the solar system's giant planets. The detection opens a new way to study magnetic fields and atmospheres of planets orbiting other stars, and scientists say future observations could reveal more about potentially habitable worlds far beyond our solar system.
- 3Asteroid Bennu may have formed closer to the Sun●Asteroid Bennu may have formed much closer to the Sun than scientists thought
New findings suggest asteroid Bennu, a near-Earth object studied by NASA's OSIRIS-REx mission, may have originated much closer to the Sun than previously believed, challenging existing models of how the solar system's early materials were distributed. Scientists say the asteroid's composition could indicate it formed in a warmer region before migrating outward.