Your top 4 questions about tornadoes

May is the peak month for twisters here in the U.S.

Do you have friggatriskaidekaphobia?

May 13 is 2016's lone Friday the 13th. Here’s the story behind Friday the 13th superstition and numerology.

Your top 3 tips to avoid mosquito bites

Simple things you can do to get fewer mosquito bites this summer.

Did human limbs evolve from shark gills?

The Sonic Hedgehog gene drives embryonic development of mammal limbs and shark gills. Could our limbs have evolved from gills?

Chernobyl all-time worst nuclear accident

The meltdown at the Chernobyl Nuclear Power Plant on April 26, 1986 exposed 572 million people to radiation. It was far worse than the 2011 Fukushima accident.

Laser cloaking to hide Earth from aliens?

If we wanted to hide Earth from alien civilizations, could we do it? Apparently, we could, according to new work by two scientists at Columbia University.

Eclipse stories from Indonesia

The solar eclipse of March 9, 2016 brought together students from around the world - and EarthSky helped to make it happen.

This is the earliest Easter until 2035

There are 35 dates on which Easter can take place. There won't be another one as early as today's Easter Sunday until 2035.

Searching for shipwrecks from space

A new study uses satellite images to detect ships' watery graves.

Zika virus may affect 50 U.S. cities

Weather, travel, and poverty may facilitate summertime outbreaks of Zika virus in many U.S. cities in summer, 2016, a new study shows.