Headlines

Galaxy mergers aren't always obvious

The galaxy Centaurus A is about 11 million light-years away and is the fifth-brightest galaxy in the sky. Because it's so bright, it's been studied extensively by amateur and professional astronomers alike. Also called NGC 5128, it's a starburst galaxy, meaning it's forming

Weak connection: Why influencers sometimes fail to influence

Conventional wisdom holds that targeting the best-connected individuals in a social network is an effective way to nudge a wider group of people to change their behavior. For example, public health officials launching a campaign to improve nutrition might target a community's

Incredible new material makes heat programmable

A newly developed material can control and "program" heat, allowing it to direct thermal radiation, switch modes, and remember its settings without continuous power. The innovation could lead to smarter infrared sensors, better energy technologies, and memory devices that use

US moves to reimpose sanctions after Iran strikes

{beacon} Energy & Environment Energy & Environment The Big Story US revokes order lifting sanctions on Iran oil The Trump administration on Tuesday revoked a sanctions waiver that had allowed the sale of Iranian oil and petrochemicals. © Vahid Salemi, Associated Press The

GLP-1 use reaches record high as access appears easier

Click in for more news from The Hill {beacon} Healthcare Health Care The Big Story GLP-1 use reaches record high as access appears easier New data released this week found that a record number of Americans are taking a GLP-1 medication for weight loss. © AP Photo/David J.