Thierry Legault Meets His Own Challenge: Image an ISS Transit of a Solar Prominence

When you’re Thierry Legault and you want to challenge yourself, the bar is set pretty high. “This is a challenge I imagined some time ago,” Legault told Universe Today via email, “but I needed all the right conditions.” The challenge? Capture a transit of the International Space Station of not just the Sun — which […]

River of Fire Smoke Darkens Sun and Moon

My eyes are burning. The morning Sun, already 40° high, glares a lemony-orange. It’s meteorologically clear, but the sky looks like paste. What’s going on here? Forest fires! Many in the Midwest, northern mountain states and Canadian provinces have been living under a dome of high altitude smoke the past few days made plain by the ruddy […]

Weekly Space Hangout – June 12, 2015: Astronomy in Chile Educator Ambassadors Program

Host: Fraser Cain (@fcain) Special Guest: This week we welcome Astronomy in Chile Educator Ambassadors Program Participants: Michael Prokosch (Seeing Stars Blog, MikeProkosch@shsuobservatory) Tim Spuck (tspuck@nrao.edu) Brian Koberlein (@briankoberlein / briankoberlein.com) Vivian White (vwhite@astrosociety.org). Guests: Jolene Creighton (@jolene723 / fromquarkstoquasars.com) Brian Koberlein (@briankoberlein / briankoberlein.com) Morgan Rehnberg (cosmicchatter.org / @MorganRehnberg ) Alessondra Springmann (@sondy) (…)Read […]

Weekly Space Hangout – June 12, 2015: Astronomy in Chile Educator Ambassadors Program

Host: Fraser Cain (@fcain) Special Guest: This week we welcome Astronomy in Chile Educator Ambassadors Program Participants: Michael Prokosch (Seeing Stars Blog, MikeProkosch@shsuobservatory) Tim Spuck (tspuck@nrao.edu) Brian Koberlein (@briankoberlein / briankoberlein.com) Vivian White (vwhite@astrosociety.org). Guests: Jolene Creighton (@jolene723 / fromquarkstoquasars.com) Brian Koberlein (@briankoberlein / briankoberlein.com) Morgan Rehnberg (cosmicchatter.org / @MorganRehnberg ) Alessondra Springmann (@sondy) (…)Read […]

This Video About Solar Superstorms is Narrated by Benedict Cumberbatch and It Looks Awesome.

What’s better than a full 180-degree digital theater experience that takes you into the heart of our Sun to see how solar storms form? Why, all of that accompanied by a rumbling narration by Benedict Cumberbatch, of course. The video above is a trailer for “Solar Superstorms,” a digital planetarium presentation distributed by Fulldome Film […]

Watch an Enormous “Plasma Snake” Erupt from the Sun

Over the course of April 28–29 a gigantic filament, briefly suspended above the surface* of the Sun, broke off and created an enormous snakelike eruption of plasma that extended millions of miles out into space. The event was both powerful and beautiful, another demonstration of the incredible energy and activity of our home star…and it […]

Astronomy Cast Ep. 371: The Eddington Eclipse Experiment

At the turn of the 20th Century, Einstein’s theory of relativity stunned the physics world, but the experimental evidence needed to be found. And so, in 1919, another respected astronomer, Arthur Eddington, observed the deflection of stars by the gravity of the Sun during a solar eclipse. Here’s the story of that famous experiment. (…)Read […]

Skywatchers Identify Aircraft as They Pass in Front of the Sun

It’s all about timing and location. You’ve probably seen images we’ve posted on Universe Today of planes crossing in front of the Sun or the Moon. But how do the photographers manager to capture these events? Hint: it’s not random luck. “I live under a main flight path out of Heathrow,” said photographer Chris Lyons […]

What it Would Look Like if the Sun was Replaced with Other Stars?

How would our horizon look if Earth orbited around another star, such as Alfa-Centauri, Sirius, or Polaris? Roscosmos TV has released two new videos that replace our familiar Sun and Moon with other stars and planets. While these are completely fantastical — as Earth would have evolved very differently or not evolved at all in […]

Solved: The Mystery of Earth’s Theta Aurora

The mystery of the northern lights – aurora – spans time beyond history and to cultures of both the southern and northern hemispheres. The mystery involves the lights, fantastic patterns and mystical changes. Ancient men and women stood huddled under them wondering what it meant. Was it messages from the gods, the spirits of loved […]