White dwarf star abruptly switches on and off
Astronomers have witnessed a white dwarf switching on and off – or going from a bright to dim stage and back – over a period of just 30 minutes.
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October deep sky: Helix Nebula and more
The October deep sky holds gems such as the Helix Nebula in Aquarius. You can spot the Helix Nebula in binoculars or a telescope on October evenings.
The post October deep sky: Helix Nebula and more first appeared on EarthSky.
Auriga the Charioteer and bright Capella on October evenings
Auriga the Charioteer is a north circumpolar constellation best viewed on autumn and winter evenings. Its star Capella is the sixth brightest star in the sky.
The post Auriga the Charioteer and bright Capella on October evenings first appeared on EarthSky.
How Russia Is Cashing In on Climate Change – The New York Times
PEVEK, Russia — A refurbished port. A spanking new plant to generate electricity. Repaved roads. And money left over to repair the library and put in a new esplanade along the shore of the Arctic Ocean. Globally, the warming climate…
Moon-forming disk around super-Jupiter exoplanet?
Astronomers say that there may be moons being created in a moon-forming disk of dust around a giant super-Jupiter planet (or brown dwarf) 500 light-years away.
The post Moon-forming disk around super-Jupiter exoplanet? first appeared on EarthSky.
Mercury before sunrise: start watching now
Look for Mercury before sunrise! Greatest elongation happens October 25. This is the Northern Hemisphere’s best Mercury apparition of 2021.
The post Mercury before sunrise: start watching now first appeared on EarthSky.
Solar systemâs future seen: 1st planet around a white dwarf
Scientists got a peek at the solar system’s future when they found a gas giant planet orbiting a white dwarf. One day the sun will die and become a white dwarf.
The post Solar systemâs future seen: 1st planet around a white dwarf first appeared on EarthSky.
Earth in a tunnel? Decades-old mystery unfolds
A new astrophysical model connects local structures in our neighborhood of the Milky Way and depicts Earth in a tunnel in space.
The post Earth in a tunnel? Decades-old mystery unfolds first appeared on EarthSky.
2001-2019 Warming Driven By Absorbed Solar Radiation Increases, Not GHG Emissions
Three new studies affirm the increase in absorbed solar radiation associated with a decreased reflection by clouds (albedo) has been the “root cause” of the positive Earth Energy Imbalance and global warming since the early 2000s. Scientists (Loeb et al.,…
Parker Solar Probe has a Venus flyby today
Parker Solar Probe will perform a close Venus flyby on October 16, 2021, to send the probe on toward its 10th close approach to the sun in November.
The post Parker Solar Probe has a Venus flyby today first appeared on EarthSky.
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