OPINION

The extreme environments of galaxy clusters can strangle galaxies to death, but the precise mechanisms are unclear.

Over 3,200 people have died from measles in the Central African country since the start of 2019.

President Trump is stuck between a rock and a hard place: he can't ignore an attack on a major ally and on the global oil market, but a military response, even of the "proportionate" variety, risks escalating the conflict.

There is a clear path forward to saving the Amazon—one that includes governments, companies, civil society, scientists, indigenous people and consumers with the support of the international community.

What it's like for publishers on Apple News.

The private and public sectors must work together to develop the breakthrough technologies needed for a clean energy transition. Putting a price on carbon is needed because demand drives innovation.

True, we can vote him out of office in 14 months' time. But he could end the world in seven and a half seconds.

African countries only account for 2 percent of coal demand, yet are willing and compelled to take a different path. If the smaller, poorer and vulnerable countries can do it, so can you.

This decision risks creating two Watchlists for two classes of people—Muslims in the U.S. and Muslims everywhere else.

How should parents deal with those who labor so joyously to create a world in which a large portion of humanity will perish?