The air conditioner was once received with chilly skepticism but has become a fixture of American life. bit.ly/3KlxR2Q

Without as many sea urchins, coral reefs became more vulnerable to algae take-overs and deterioration. bit.ly/4aQcZvP

Memorial Day became an official federal holiday in 1971 and is now celebrated on the fourth Monday in May. bit.ly/3UXP33n

Forty-five years after the original Star Wars premiered in 1977, a model of an X-wing Starfighter used in the film’s climactic battle was found stored away in a garage. bit.ly/3WR2Co0

Depicted from the legs up, the sculpted woman emerges from the slanted face of a boulder on the forest floor. bit.ly/4bWkTER

While your best shot of glimpsing the aurora in the United States is by traveling up to Alaska, recent months have brought more frequent sightings in the lower 48. bit.ly/3WQPD5N

With less tourist traffic, these UNESCO World Heritage Sites include vineyards that rival France’s Champagne or Burgundy. bit.ly/3R0BgYZ

Astronomers captured the first-ever image of magnetic fields circling the supermassive black hole at the center of our Milky Way galaxy. bit.ly/3WPo6Se

By the 1950s, more than 1,000 Jewish resorts dotted the Catskills, with accommodations ranging from camps and bungalow colonies, to kuchalayns, to hotels and resorts within Sullivan, Orange, and Ulster counties. bit.ly/4bTdaY4

'Japanese Apple. At the local bazaar, the chocolada was delicious.'

#PhotoContest #PhotoOfTheDay

📸: Elisabeth Yesko

'Schindler’s List' inspired its director, Steven Spielberg, to establish a foundation that preserves survivors’ stories. bit.ly/4dOetcF

Which historical figure would you most like to take a road trip with? bit.ly/4bSDZeY

In a southern African cave, paleontologists uncovered pieces of shells from large land snails that date to 70,000 to 170,000 years ago. bit.ly/3KeNjOj

The great American road trip has long offered a cure for such complacency, and this summer should be no different. Where will your travels take you this summer? bit.ly/4buQjlT

The new images included breathtaking views of galaxy clusters, a dust-wrapped stellar nursery and one of the largest spiral galaxies beyond the nearby universe. bit.ly/3wEX5X3

The tomb, composed of two chambers connected by a tiny door and windows, was found in a family gravesite on China’s east coast containing four other burials. bit.ly/3KfiNE1

Historians were surprised to discover more than 50 carvings on the door, including initials, last names and depictions of hangings. bit.ly/3R1LfNE

The sculpture, 'Warrior's Leg' by Paul Thek, depicts with startling realism, the calf and foot of a soldier from the age of the Roman Empire, hacked off at the knee. bit.ly/3WXJrJ8

The find has the potential to upend the long-held belief that Aboriginal people did not make pottery. bit.ly/4awWgxb

Researchers outfitted Greek marines in replicas of a Mycenaean suit and simulated combat to see if the armor was usable in its day. bit.ly/4azbOAv