Each Monday, I pick out North America’s celestial highlights for the week ahead (which also apply to mid-northern latitudes in the northern hemisphere).
Friendships rarely end — they fade. A psychologist explains seven small weekly habits, backed by recent research, that keep the people you care about close.

Before recent high-profile hacks raised the specter of AI possibly “killing all humans,” our energy systems were already disturbingly vulnerable to cyberattack – and the risk is growing. “We were always prey. We were just kind of surviving at the appetite of our predators,” Joshua Corman, executive in residence for public safety and resilience at […]
Several new studies have uncovered this long overlooked aspect of coral physiology that could be the key to the animals’ fate in a changing climate.
Fall begins with the September equinox this week, but despite what its name suggests, day and night won’t actually be equal. Here’s why — and when they will be.
College football fans complained about lightning delays on Saturday, but there is a compelling reason they are implemented. They save lives.
The Hunter’s Supermoon rises almost exactly at sunset across much of the U.S. tonight. Here are the exact times to look where you live.
Everything you need to know about October’s full Hunter’s Moon — including exactly when it turns full, which evening offers the clearest view and why it’s a supermoon.
October’s full Hunter’s Moon will dominate the night sky on Monday, Oct. 26. Here’s exactly when it rises and the best time to see it.
Only 15% of people are Rh-negative — an evolutionary biologist unpacks why a costly blood trait never disappeared from the human gene pool.