The Bitter Truth: Coffee Lovers’ Love of Caffeine is Wired in their DNA

Posted on Categories Discover Magazine

(Credit: Somchai Som/shutterstock) Are you a coffee drinker? This banal get-to-know-you question becomes strange when you really think about the anticipated dichotomy of a firm yes or no answer. A few people might dabble in the delicious, charming, soul-warming beverage (you can see where my allegiances lie), but many more seem to either love or hate the bitter stuff. People on either end of the coffee spectrum might think of the other, are you seriously tasting what I’m tasting? It woul ...read more

Simply Seeing and Smelling Food Preps the Liver for Digestion

Posted on Categories Discover Magazine

Credit: Shutterstock After a long day’s work, sometimes you can’t help but drool over that hot, tempting meal sitting in front of you. Well, it turns out that your liver can’t either. A new study published in Cell Reports on November 15 suggests that simply seeing and smelling food preps your body for delicious digestion. The research shows that the specific neurons activated in freshly-fed mice were also activated in mice exposed to just the sight and aroma of food. These in ...read more

FCC Gives SpaceX Green Light for 7,518 New Satellites

Posted on Categories Discover Magazine

SpaceX’s Dragon cargo spacecraft in orbit. The private space company has gotten permission from the FCC to launch over 7,000 satellites into low-Earth orbit. (Credit: SpaceX) Elon Musk’s SpaceX is cultivating a larger presence in space. The private space company has just won permission from the Federal Communications Commission (FCC) to deploy 7,518 satellites into low-Earth orbit. This is thousands more than the approximately 2,000 total satellites now orbiting and operating aroun ...read more

Skeletal Studies Show Sex, Like Gender, Exists Along a Spectrum

Posted on Categories Discover Magazine

Stanislawa Walasiewicz won the gold for Poland in the women’s 100-meter dash at the 1932 Olympic Games. Upon her death, an autopsy revealed that she had intersex traits. (Credit: Wikipedia) She wasn’t especially tall. Her testosterone levels weren’t unusually high for a woman. She was externally entirely female. But in the mid-1980s, when her chromosome results came back as XY instead of the “normal” XX for a woman, the Spanish national team ousted hurdler Mar&iac ...read more

These Two New 'Rogue Planets' Wander the Cosmos Without Stars

Posted on Categories Discover Magazine

Rogue planets, like the one shown in this artist’s concept, drift through interstellar space alone, and are thought to be prevalent throughout the Milky Way. (Credit: NASA/JPL-Caltech) Astronomers think they’ve just discovered two more rogue planets wandering the Milky Way alone. And according to the new study, which is set for publication in the journal Astronomy & Astrophysics, the planets are likely just the tip of the iceberg when it comes to free-floating worlds hiding in ...read more