Predicting the Outcome of the Milky Way – Andromeda Collision
Models show that the future Milky Way – Andromeda collision will create an elliptical galaxy and eventually a single supermassive black hole.
Amateur Astronomers Identify ‘Dunes’ Structure in Aurorae
Amateur astronomers once again identify a new auroral feature. Dunes occur at about 100 km altitude, forming waves in the sky.
Perseverance Drives on Mars for First Time, Landing Site Named
NASA’s Perseverance takes a first drive on the surface of Mars and ran various tests on its equipment and software.
Study of Comet Catalina Shows Carbon Brought to Rocket Planets
Comet Catalina was observed by the SOFIA airborne observatory to be carbon-rich, evidence that comets could seed Earth with elements for life.
Giant Planet May Closely Orbit Vega
The bright star Vega may have a planet the size of Neptune orbiting with an orbital period of just 2.5 days.
Petrified Tree Found on Greek Island, Complete with Roots and Branches
An entire petrified tree, complete with root systems and branches, was found buried in volcanic ash on the Greek island of Lesbos.
Volcanoes May Light Up Only One Hemisphere of Newly Found Exoplanet
Tidally locked, Earth-sized exoplanet shows signs of subsurface magma flow, from the hot hemisphere to the cold.
Super-Earth Found That Can Test Planetary Atmospheric Models
Hot super-Earth found that still has an atmosphere and transits its star, giving scientists an opportunity to study atmospheric models.
Survey Finds Freshwater Fluctuations Mostly Due to Human Impact
Fluctuations in the planet’s freshwater deposits are minor compared to the changes occurring in dammed-up reservoirs.
Atlantic Gulf Stream at Weakest in Over a Millennium
The Gulf Stream is slowing down according to a new study, as a result of melting glaciers adding freshwater to the oceans.
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