Enjoying EarthSky? Subscribe.

37,000 subscribers and counting ...


Posts by Shireen Gonzaga

Great white shark.  Courtesy C. Fallows
Blogs | May 21, 2013

Great white sharks supplement a seal diet with dead whales

Great white sharks, apex ocean predators, are also mega scavengers of the largest of ocean carrion, dead whales.

snowflakes_300
Blogs | Feb 19, 2013

How to take photos of snowflakes

Try it yourself! With a little preparation and a good camera and with a macro lens, you can take your own photos of snowflakes.

2013 Year of the Snake
Blogs | Feb 10, 2013

Chinese New Year 2013 rings in Year of the Snake

This year’s Chinese New Year celebration has begun, ushering in the Year of the Snake. Gong Xi Fa Ca, y’all!

Noctilucent clouds, Estonia. Image credit: Martin Koitmä.
Blogs | Jun 16, 2012

The secrets of night shining clouds

After sunset, when the sun is below the horizon but visible from the clouds’ high altitude, sunlight illuminates them, causing them to glow in a dark night sky.

Image Credit: Glenn Williams/NIST
Blogs | Apr 01, 2012

Narwhals display sophisticated sword fighting techniques

No one has ever observed narwhal behavior at depths so deep that sunlight never penetrates. Until now.

Killer whales. Image Credit:  NOAA via Wikimedia Commons.
Blogs | Feb 08, 2012

What are whales talking about? Help find out

Scientists are trying to decipher the complex vocalizations of Killer whales and Pilot whales, and they need your help.

octopus
Blogs | Jan 12, 2012

Lost world of creatures at Antarctic deep-sea vents

Using Remotely Operated Vehicles to explore deep-sea hydrothermal vents near Antarctica, a British team has found creatures new to science.

LRO image of Apollo 17 site. Image credit: NASA/GSFC/ASU.
Blogs | Jan 08, 2012

Look for alien artifacts on moon, says renowned scientist

If extra-terrestials visited the moon, they may have left tell-tale signs. It’s worth a look, says a leading scientist, and won’t cost much.

clock_almost_midnight
Blogs | Dec 30, 2011

Friday, December 30, 2011 struck from Samoan calendar

Samoa has moved to the west side of the International Date Line, going straight from Thursday, December 29 to Saturday, December 31, 2011.

Hanke-Henry_calendar_thumb
Blogs | Dec 28, 2011

A fixed-date calendar and no time zones, researchers say

In the Hanke-Henry Permanent Calendar, if your birthday is on a Monday, it’s always on a Monday. Plus, these researchers want to abolish time zones.