Posts by 

Deborah Byrd

New clues to possible Venus auroras

For 40 years, astronomers have puzzled over signs of a green aurora on Venus, despite the planet's lack of a magnetic field.

Philae lander completes its main mission, then falls silent

The first-ever comet lander - Philae - made history this week by spending some 57 hours gathering data on the surface of Comet 67P/Churyumov–Gerasimenko.

Orion always comes up sideways

Patricia Evans shares her new skill at astrophotography and a poem by Robert Frost.

Nevada earthquake swarm intensifies

Earthquake activity in northwest Nevada over the past week has been more than in previous months combined, says the Nevada Seismological Laboratory.

Rosetta mission places Philae lander on its comet

As of Thursday morning, November 13 - after initially failing to attach to the surface - Philae is now stable and is sending back pictures.

As Philae detached from its mothership, an eerie comet song

Listen in on a mysterious sound produced by Rosetta's comet. ESA says the comet song is due to "oscillations in the magnetic field in the comet's environment."

We’ve landed on a comet!

New images from the Philae lander are expected on Thursday, November 14. In the meantime, despite challenges ... a cause for celebration for all humanity.

Light pillars over northern Sweden

As winter comes to the far north, sky conditions may be just right to produce a beautiful light phenomenon called "light pillars."

Extraterrestrial oceanography reveals depths of Titan sea

The Cassini spacecraft - which has been orbiting Saturn since 2004 - used radar to sound the depths of a sea of liquid methane and ethane on Saturn's large moon Titan.

Moonset behind trees

Increasingly golden or orange color as the moon sets is due to the fact that - as it sinks - you're seeing the moon through more and more of Earth's atmosphere.