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254,479 articles from PhysOrg

Astronomers detect a second planet orbiting two stars

Planets orbiting binary stars are in a tough situation: They have to contend with the gravitational pull of two separate stars. Planetary formation around a single star like our sun is relatively straightforward compared to what circumbinary planets go through. Until recently, astronomers weren't sure they existed.

Anti-Black bias can persist despite kids' tendency to favor same-gender peers

Children as young as five can display more positive associations with white children over Black children on measures of unconscious bias, and new research from York University finds this can be true even when taking into consideration kids' tendencies to favor same-gender peers. Taking an own-gender lens does, however, increase positive associations toward Black children, pointing to both the...

Browsing herbivores increase savanna resilience to droughts, study finds

Extreme climate events pose an ever-increasing threat to savannas around the world. However, the ability of these mixed woodland-grassland ecosystems to resist periods of drought can be improved with a higher number of browsing herbivores—i.e., animals such as kudus, springboks, and common elands that feed on woody vegetation. These help increase the amount of plant diversity and thus the...