A phenomenon first detected in the solar wind may help solve a mystery about the sun: why the solar atmosphere is millions of degrees hotter than the surface.
Dec. 11, 2020 • ~8 min
physics space temperature plasma sun science-and-technology
The scariest beast in the universe has an insatiable appetite and shreds its victims.
Oct. 30, 2020 • ~7 min
physics space astronomy sun stars black-holes singularity
The pattern of autumn sea ice growth has been completely disrupted, but are we really headed for a tipping point?
Oct. 28, 2020 • ~6 min
climate-change heat-wave arctic oceans sun atlantic-ocean sea-ice polar-ice
The Earth's magnetic field was most likely weaker when life evolved on our planet than it is today.
Oct. 15, 2020 • ~5 min
evolution atmosphere moon earth sun magnetism magnetic-fields life-on-earth solar-winds
Last week, much of the Midwest and eastern US experienced hazy skies and red sunsets. The cause was smoke transported from the Western US by the jet stream and spread as far as Boston and even Europe.
Sept. 22, 2020 • ~4 min
atmosphere pollution wildfires smoke sun fire jet-stream fire-season
CfA astronomers theorize that the solar system originally had two suns as they further research a sneezing star and ‘Oumuamua.
Sept. 4, 2020 • ~9 min
science-technology oumuamua avi-loeb cfa center-for-astrophysics-harvard-smithsonian amir-siraj andrea-dupree betelgeuse binary-suns sneezing-star
Solar Orbiter takes the closest ever pictures of the Sun, just 77 million km from the surface.
July 16, 2020 • ~4 min
astronomy space-exploration the-sun european-space-agency
The UK could experience some of the highest UV levels ever recorded, on Thursday.
June 25, 2020 • ~4 min
skin-cancer weather-forecasting the-sun