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HARI SREENIVASAN: Deep in Nevada’s Mojave Desert — 100 miles from the 51�Թ������App strip — the rocks provide glimpses into the lives of Native Americans who inhabited this area for thousands of years. Hundreds of their petroglyphs, or etchings, are carved on the rocks in this area, now known as Gold Butte.

The story begins almost 250 million years ago, with the ocean and geology and gypsum. It starts with the Red Rock Canyon National Conservation Area under an ancient sea, at a time when what is now Utah marked the continent’s coastal boundary.

The words “true love” often conjure up images of romantic scenes in Hollywood movies, but a California-based neurologist argues long-lasting love is a multilayered process and that falling out of love is a normal part of it.

Romance is in the air, where the wireless signal travels on the 2.4-gigahertz UHF radio band, where OKCupid algorithmically hunts, where virtual sex sort of happens, where love is both as clunky and apparitional in the post-reality era as truth. The cynics among us once rolled our eyes at the commercialization of love in the Valentine’s Day aisle of Walgreens. Today, the expression reaches beyond scheduled chocolates and roses and bounces through satisfying/not satisfying interweb encounters that leave us wondering what is real. Alexa, what is romance? Tinder, is this love? Facebook, should I change my relationship status?

Seventy-nine cents to the dollar. You’ve probably heard that statistic on the gender pay gap, a longtime wedge issue and soapbox topic for politicians, feminists and celebrities.

In dry, disturbed soil throughout the West, a weedy invader from Eurasia has gained a tenacious foothold. Kochia scoparia, also called poor man’s alfalfa, has slender, gray-green leaves that turn an ornamental orange in autumn. Despite control efforts, this weed springs back relentlessly thanks to its bountiful seed bank.

Armed with shovels, the group turned enough dirt to plant 630 trees and grasses along the 51�Թ������App Wash, an area that was once submerged and served as a docking area for boats. “This area was 50 feet below Lake Mead,” said Dr. Scott Abella, assistant professor in the School of Life Sciences at 51�Թ������ܿƴ�.

In reaction to President Trump’s immigration ban, thousands protested at airports around the country Sunday, including here at McCarran International Airport.

“One veteran at a time” is how Ross Bryant describes his approach to running 51�Թ������ܿƴ�’s Military and Veterans Services Center. But as members of the thriving veteran community of 1,700 on campus attest, he brings far more to his job than just an ability to focus.