Geoff Brumfiel

The comet, 2I/Borisov, looks surprisingly like comets closer to home. It's a sign that the processes that formed the sun and planets are at work elsewhere in the universe.

Everyone knows about Apollo 11, the first moon landing. And about ill-fated Apollo 13. Between them is the forgotten mission — Apollo 12.

On this date in 1969, Apollo 12 landed on the surface of the moon. But it seems this moon mission is overshadowed by the more famous Apollo 11 and Apollo 13 landings. But why?

Satellite images shared exclusively with NPR show North Korean fighters and helicopters massed at a single airbase. It could be another sign of escalating tensions.

SpaceX and a rival company are rushing ahead with plans for constellations of thousands of satellites, but regulators might not be ready.

Iran is reopening one of its most controversial uranium enrichment facilities. The move increases its ability to generate enriched uranium and puts more pressure on the already strained nuclear deal.

On YouTube, campaign ads have begun appearing on Russian propaganda channels. But it may be the algorithm, not collusion.

Some familiar political advertisements end up alongside Russian government-backed messaging online. But it's not Moscow's doing. It's about Google — and you.

Three researchers were awarded the Nobel Prize in Physics for discoveries that illuminate our place in the Universe.

A Canadian and two Swiss scientists on Tuesday won the Nobel Prize in Physics for contributions to our understanding of the evolution of the universe and Earth's position in the cosmos.

On Sept. 14, a Saudi oil processing plant was rocked by a series of explosions. The facility, and another oil field, were attacked from the air. Here's what physical evidence exists about the attacks.

The U.S. and Saudi Arabia claim Iran is behind the attack. Iran denies involvement. Here's what the physical evidence shows.

Almost everyone who learns about the project thinks it sounds "crazy," admits one scientist. But the technology should work.

Independent analysts say the evidence available suggests Iran played a role in the weekend attack. The question is how big that role might be.

An attack over the weekend crippled a major Saudi Arabian oil facility. Evidence suggests the strike may have involved both missiles and drones and means Iran probably played a role.

Eyewitness images and satellite pictures show oil that seeped from tanks at a major storage terminal on the island's eastern side. The terminal's owner says it was damaged by Hurricane Dorian.

Last week, the president tweeted a highly detailed image showing the aftermath of an accident at Iran's Imam Khomeini Space Center. It reveals the power of U.S. spy satellites.

Not all bullets are created equal. This video compares the damage caused by different kinds of rounds.

Hurricane Dorian hit Sunday as a Category 5 hurricane and then essentially parked itself over the island.

The satellite is believed to be among America's most advanced. Some believe it's as large as the Hubble Space Telescope.