Is Betelgeuse Ready To Blow?

This illustration gives you an idea of Betelgeuse’s enormity. Put in place of the sun, it would be nearly as large as the orbit of Saturn. The inset photo was taken by the Hubble Space Telescope. Credit: Tom Callen, Cosmonova, Swedish Museum of Natural History, Stockholm It’s sad there’s so much distance between us and…
Read More

A Remote Planet Within Your Grasp

The waning moon Tuesday morning brushes up against a red pine. Photo: Bob King Nice to walk out the door this morning and see the crescent moon in the south before sunrise. I find the crescent the most eye-catching lunar phase. Don’t forget — tonight we have a fine pass of the International Space Station beginning at…
Read More

Earth As A Planet

Looks like Mars, doesn’t it? This 1.2 mile-wide crater is actually deep in the Sahara Desert. It’s called Tenoumer Crater and lies on vast plain of ancient rock. The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA’s Terra satellite captured this image over Mauritania on January 24, 2008. Credit: (NASA,Jesse Allen, NASA/GSFC/METI/ERSDAC/JAROS, U.S./Japan ASTER…
Read More

Meet Calgalleon And Gnarrangalleon

The Large Magellanic Cloud (LMC)(center) and Small Magellanic Cloud (SMC) glow in early dawn light from near Winton, Queensland, Australia. The Magellanic Clouds are two of the closest galaxies to the Milky Way, more than 10 times closer than the Andromeda Galaxy. Photo by Chris Schur and used by permission. Anyone headed to Australia this week? If…
Read More

Space Station Returns To Northland Skies Tonight

This time exposure photo records a pass of the space station taken from my home last July. The ISS is the brightest satellite in the sky because it’s the biggest (reflects more light) and orbits relatively near the Earth at an altitude of around 215 miles. Photo: Bob King The International Space Station (ISS) returns…
Read More