Night

Night (also described as nighttime, unconventionally spelled as "nite") is the period of ambient darkness from sunset to sunrise during each 24-hour day, when the Sun is below the horizon.

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Loud snoring—simulation reveals the physical mechanism that keeps so many of us awake at night

Did humans evolve to be active throughout the day and night?

Too hot to sleep? How heatwaves at night affect our health

Will you be looking up on Aug. 12, the best skywatching day and night of the year?

Extreme Heat May Drive Asthma Risk in Baltimore, Especially at Night

KAIST develops AI that avoids hallucinating even at night or in smoke - EurekAlert!

How to Watch Two Summer Meteor Showers Peak On the Same Night

Can’t sleep in the heat? These 8 tricks could save your night

Losing Even 80 Minutes of Sleep a Night Linked to Weight Gain

A Space Mirror Will Test Turning Night Into Day. What To Know About the Controversial Project

The US Approves Launch of Mirror Satellite That Can Reflect Sunlight and Illuminate the Earth at Night

Losing just 80 minutes of sleep a night could make you gain weight

Massive 3,200 Megapixel Camera Will Take 700 Photos Every Night for 10 Years

My nephew still uses this kids' star projector every night — get it for just $15 at Amazon on Prime Day

James Webb Spots Something Strange Between Day and Night on an Alien Planet

These birds clack their wing bones together to woo mates at night

Typhoon Jangmi’s giant eye lights up the night as it approaches Japan

NASA’s Webb telescope discovers a planet where rock clouds vanish every night

What Is ‘Dusking?’ Namibia Named Best Place To Watch Day Turn To Night

An Early Warning Sign of Alzheimer's May Be Keeping Some Women Up at Night