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The equinox is often described as the day of 12 hours of daylight and 12 hours of darkness. In reality, the Sun’s visible disc, atmospheric refraction and latitude make the balance only approximate.
Learn how lunar impact craters form, what ejecta and regolith are, how NASA found the fresh McGetchin crater, and why its surrounding cold spot matters.
Light does more than help you see. Evening exposure can tell your brain that the day is not over yet, affecting melatonin, circadian timing and when you naturally feel sleepy.
Ocean currents do far more than move seawater. Driven by winds, Earth's rotation, tides and differences in water density, they redistribute heat, bring nutrients towards the surface, influence ecosystems and weather, transport pollutants and connect distant parts of the planet.
A bleached coral is under stress, but it is not necessarily dead. If conditions improve in time, some corals can regain their algae and recover.
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Lightning and thunder are produced by the same event, but light reaches us far faster than sound. Here's why—and how the delay can provide a rough estimate of distance.
Researchers using artificial intelligence to plumb links between biological age and cancer outcomes have linked both looking younger than your chronological age and appearing to age slower during treatment to improved survival.
Lael Ayala’s thesis project combined her passions for softball, engineering. A collection of features and graduate profiles covering Harvard’s 375th Commencement.
A collection of features and graduate profiles covering Harvard’s 375th Commencement.It was DNA replication that first captured Isaac Witte’s scientific imagina...
Rachna Reddy.Veasey Conway/Harvard Staff Photographer And you thought your adolescence was hard Radcliffe fellow explores vulnerable life stage we share wit...
The sugar molecule Myo-inositol found in breast milk could be essential for the baby's brain development, according to a study. The finding could help to improv...