The scariest things in the universe are black holes – and here are 3 reasons

The scariest beast in the universe has an insatiable appetite and shreds its victims.

Chris Impey, University Distinguished Professor of Astronomy, University of Arizona • conversation
Oct. 30, 2020 • ~7 min
physics space astronomy sun stars black-holes singularity

Where’s the sea ice? 3 reasons the Arctic freeze is unseasonably late and why it matters

The pattern of autumn sea ice growth has been completely disrupted, but are we really headed for a tipping point?

Mark Serreze, Research Professor of Geography and Director, National Snow and Ice Data Center, University of Colorado Boulder • conversation
Oct. 28, 2020 • ~6 min
climate-change heat-wave arctic oceans sun atlantic-ocean sea-ice polar-ice

Life on Earth: why we may have the Moon's now defunct magnetic field to thank for it

The Earth's magnetic field was most likely weaker when life evolved on our planet than it is today.

Jon Mound, Associate Professor of Geophysics, University of Leeds • conversation
Oct. 15, 2020 • ~5 min
evolution atmosphere moon earth sun magnetism magnetic-fields life-on-earth solar-winds

How can smoke from West Coast fires cause red sunsets in New York?

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.

Jeffrey B. Halverson, Professor of Geography & Environmental Systems, Associate Dean of the Graduate School, University of Maryland, Baltimore County • conversation
Sept. 22, 2020 • ~4 min
atmosphere pollution wildfires smoke sun fire jet-stream fire-season

Four amazing astronomical discoveries from ancient Greece

From the Moon's size to the first calculator, the ancients made some jawdropping discoveries without modern technology.

Ian Whittaker, Lecturer in Physics, Nottingham Trent University • conversation
April 24, 2020 • ~8 min
astronomy moon earth ancient-greece sun

/

1