Astronomy

Astronomers Detect Sugar in Interstellar Space for First Time

This composite image of the Milky Way’s central region shows the location of the molecular cloud G+0.693-0.027. Image credit: Ashley Barnes / Izaskun Jiménez-Serra / Juan García de la Concepción.

Using the Yebes 40-m and IRAM 30-m radio telescopes, astronomers have discovered erythrulose, a four-carbon sugar commonly found in raspberries and sunless tanning cosmetics, in the molecular cloud G+0.693-0.027. This composite image of the Milky Way’s central region shows the location of the molecular cloud G+0.693-0.027. Image credit: Ashley Barnes / Izaskun Jiménez-Serra / Juan García de la...

Paleontology

Paleontologists Discover New Species of Titanosaur in Uruguay

Mesetasaurus protector. Image credit: Merlina Ramírez.

Paleontologists in Uruguay have identified a new species of aeolosaurine titanosaur from a pair of remarkably well-preserved tailbones unearthed in the 1980s near the Uruguay River. Mesetasaurus protector. Image credit: Merlina Ramírez. Mesetasaurus protector lived in what is now Uruguay between 86 and 72 million years ago (Late Cretaceous epoch). The new species was a member of a group of titanosaurian...

Biology

Bumblebees Display Emotion-Like Reactions to Sweet and Bitter Tastes

Gibbons et al. showed that bumblebees are capable of modifying their response to noxious stimuli in order to get a higher sugar reward. Image credit: Ralphs Fotos.

Slow-motion video reveals that buff-tailed bumblebees (Bombus terrestris) respond to sweet and bitter tastes with distinct, context-dependent behaviors resembling mammalian expressions of pleasure and disgust, adding fresh evidence to the debate over insect consciousness. Zhou et al. show that buff-tailed bumblebees (Bombus terrestris) display analogous orofacial reactions to tastes that reflect...

Geology

Australia’s North Pole Dome Crater is Earth’s Oldest and Only Known Archean Impact Structure

The North Pole Dome crater: (A) simplified map of the East Pilbara Terrane (EPT, Western Australia), showing Paleoarchean granite domes (pink) and greenstone belts (greens and blues); the North Pole Dome (NPD) lies near the terrane center; (B) geological map of the NPD and the shatter-cone field (yellow star); (C) A quartz (Qtz)-carbonate vein cutting shatter-cone lineation. Image credit: Kirkland et al., doi: 10.1130/G54866.1.

Zircon crystals and impact-altered minerals show that a massive asteroid slammed into what is now the Pilbara region of Western Australia about 3 billion years ago. The North Pole Dome crater: (A) simplified map of the East Pilbara Terrane (EPT, Western Australia), showing Paleoarchean granite domes (pink) and greenstone belts (greens and blues); the North Pole Dome (NPD) lies near the terrane center;...