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.

Medieval Wound Man

From The Public Domain Review, The Many Lives of the Medieval Wound Man , a diagram found in many medical texts beginning in the early 1400s. Living on today in libraries from Copenhagen to Munich, the strange figure of the Wound Man gives modern viewers a glimpse of the

Netanyahu attacks Mamdani for stance on Israel: 'It's absurd'

Israeli Prime Minister Benjamin Netanyahu on Tuesday went after New York City Mayor Zohran Mamdani (D) for saying he couldn't support Israel because the country “privileges” Jewish citizens over those of other religions. “He conveniently forgets that the only democracy in the

Qatar blames Iran for striking tanker in Strait of Hormuz

Welcome to The Hill's Defense & NatSec newsletter {beacon} Defense &National Security Defense &National Security The Big Story Qatar blames Iran for tanker strike in Strait of Hormuz Qatar blamed Iran on Tuesday for striking a Qatari-flagged natural liquified gas tanker near