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MWC 922: The Red Square Nebula

What could cause a nebula to appear square? No one is quite sure. The hot star system known as MWC 922, however, appears to be embedded in a nebula with just such a shape. The above image combines infrared exposures from the Hale Telescope on Mt. Palomar in California, and the Keck-2 Telescope on Mauna Kea in Hawaii.

The Oldest Child Is Smarter and Here’s Why

A new study out shows that when it comes to intelligence, the oldest child has the upper hand. Laci Green explains what led researchers to this conclusion, and if younger siblings are really doomed to a life of mediocrity.

Banksy’s Art Project In Gaza

Street artist Banksy has just released his first project of 2015. First time Banksy has ventured to Palestine in 2005 and created nine world famous images on the Israeli West Bank wall. This is his second trip.

Reasons for the seasons

Why do some regions experience full-time heat while others are reckoning with frigid temperatures and snow? And why are the seasons reversed in the two hemispheres? Rebecca Kaplan explains how the shape of the Earth’s orbit around the Sun and the Earth’s tilt on its axis affect the amount of sunlight each region receives.