Abstract: In this paper, we propose practical model-based policy optimization (PMBPO) to address the time efficiency issue caused by overly frequent model updates in recent probabilistic model-based ...

President Donald Trump’s announcement of reciprocal tariffs — with that massive chart behind him — drew puzzled reactions initially. How did Vietnam — ostensibly a country that the U.S. would want to ...

The first 21 satellites in a constellation that could become a cornerstone for the Pentagon's Golden Dome missile-defense shield successfully launched from California Wednesday aboard a SpaceX Falcon ...

Summary: Breast milk is more than nourishment—it delivers circadian cues that may shape infant sleep, immunity, and metabolism. Researchers analyzing milk samples found that melatonin peaked at night ...

Get your news from a source that’s not owned and controlled by oligarchs. Sign up for the free Mother Jones Daily. President Trump is planning to ramp up his federal reach into local enforcement after ...

Exercise helps your physical and mental health, which can help combat and prevent the effects of aging. Adults aged 65 and older should aim for a weekly exercise routine that includes 150 minutes of ...

A galaxy proto-supercluster was discovered using VIMOS instrument of ESO’s Very Large Telescope. The astronomers who discovered it have nicknamed the bohemoth “Hyperion.” It has been visualized here.

China sells billions of dollars worth of military equipment to more than 40 countries. But for Beijing, arms trade is not just a lucrative business. Photo: Huang Wei, Rao Aimin/Zuma Press In a study ...