Posts by

Eleanor Imster

Saturn ring density is an illusion

The most opaque parts of Saturn's rings - the parts that look most dense - don't always contain more material. Another great Saturn mystery!

Deborah Byrd

Eleanor Imster

February 3, 2016

Monster gas cloud boomerangs back to us

Astronomers say the Smith Cloud will plow into the Milky Way in about 30 million years and ignite a spectacular burst of star formation.

Eleanor Imster

February 2, 2016

Take a colorful flight over dwarf planet Ceres

A new animation shows a simulated flight over the surface of dwarf planet Ceres, based on images from NASA's Dawn spacecraft.

Eleanor Imster

February 1, 2016

Fungi survive Martian conditions on ISS

Antarctic fungi survive Martian conditions after being strapped on the outside of the International Space Station for 18 months.

Eleanor Imster

February 1, 2016

Cascade of magnetic arches on sun

Take 15 seconds to watch glowing magnetic arches cascade across the solar surface, captured by NASA’s Solar Dynamics Observatory.

Eleanor Imster

January 21, 2016

Flower blooms in space

Here it is! A flower grown on the International Space station blooms.

Eleanor Imster

January 20, 2016

Milky Way’s second-largest black hole?

Astronomers are calling it a possible first detection of an intermediate-mass black hole, a missing link in black hole evolution.

Deborah Byrd

Eleanor Imster

January 20, 2016

Newest image of possible Pluto ice volcano

Check out this highest-resolution color view of a possible cryovolcano spotted on the surface of Pluto by the New Horizons spacecraft in July 2015

Eleanor Imster

January 15, 2016

Watch ISS spacewalk live today

Two International Space Station (ISS) astronauts will perform the first spacewalk of the year on Friday. NASA TV will air the spacewalk live. Coverage starts at 6:30 a.m., with spacewalk scheduled to begin at 7:55 a.m.

Eleanor Imster

January 15, 2016

Ancient gas cloud relic of first stars?

Astronomers see this cloud just 1.8 billion years after the Big Bang. It has a tiny percentage of heavy elements, those forged in subsequent generations of stars.

Eleanor Imster

January 14, 2016

Eleanor Imster

Eleanor Imster has helped write and edit EarthSky since 1995. She was an integral part of the award-winning EarthSky radio series almost since it began until it ended in 2013. She and her husband live in Tennessee, where they enjoy guitar playing and singing. They have 2 grown sons.