Posts by

Eleanor Imster

El Niño already disrupting ocean food web

Scientists report the loss of phytoplankton - at the base of the ocean food web - from this year's strong El Niño. It's all part of a fascinating cycle of boom or bust for marine animals.

Eleanor Imster

November 6, 2015

Tune in to second spacewalk live November 6

If you missed last week’s spacewalk, here’s another chance. The same two ISS astronauts are performing their second spacewalk today (November 6, 2015), starting at 7:10 a.m. EST (1210 UTC).

Eleanor Imster

November 6, 2015

What is El Niño?

A big El Niño is developing in 2015, say scientists. This NASA video explains El Niño and its impact on the marine food web.

Eleanor Imster

November 5, 2015

Whoa! That’s a big galaxy cluster

The cluster's mass is a quadrillion times that of our sun - making it the most massive known cluster that far back in space and time.

Eleanor Imster

Deborah Byrd

November 4, 2015

Antarctica’s ozone hole in 2015

The 2015 Antarctic ozone hole formed later than usual and had the fourth-largest area measured since the start of the satellite record in 1979.

Eleanor Imster

November 3, 2015

See it! Great photos of Hunter’s Moon

Thanks to all friends who shared your fantastic images of the October 2015 full moon - Northern Hemisphere's Hunter’s Moon - shining down on all the world.

Eleanor Imster

October 28, 2015

Watch spacewalk live October 28

Watch two NASA astronauts make their first spacewalk outside ISS today, beginning at 8:10 a.m. EDT (12:10 UTC) until about 2:40 p.m. EDT (18:10 UTC).

Eleanor Imster

October 28, 2015

Kerberos images complete Pluto family portrait

Images of Pluto's tiny moon Kerberos recently downlinked from New Horizons spacecraft. We now have images of all five Pluto moons.

Eleanor Imster

October 25, 2015

See it! Orionid meteor shower photos 2015

The peak of the 2015 Orionid meteor shower has passed now. Here are some awesome photos from the Earthsky community!

Eleanor Imster

October 22, 2015

Asteroid showers linked to mass extinctions, says study

Scientists find links between comet and asteroid showers and recurring mass extinctions of life on Earth, including the demise of the dinosaurs.

Eleanor Imster

October 21, 2015

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.