Science

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When Voyager 2 flew past Uranus in 1986, the spacecraft detected a surprisingly low level of internal heat from the planet. Since then, scientists believed Uranus to be the odd one out in our solar system’s family of giant planets—the others being Jupiter, Saturn, and Neptune—who all tend to emit more heat than they absorb from sunlight. Now, a new …

When you buy through links on our articles, Future and its syndication partners may earn a commission. Uranus, the seventh planet from the sun. | Credit: NASA Scientists have found that Uranus is emitting its own internal heat — even more than it receives from sunlight — and this discovery contradicts observations of the distant gas giant made by NASA’s …

(From left to right) Mason Marshall, David Hume, Willa Arthur-Dworschack and Daniel Rodriguez Castillo stand in front of the aluminum ion clock at NIST. With its recent improvements, the clock can pave the way for the campaign to redefine the second as well as explore new ideas in physics. Credit: R. Jacobson/NIST There’s a new record holder for the most …

Scientists at the European Space Agency used a laser to communicate with a spacecraft 165 million miles (265 million kilometers) away in deep space for the first time, marking a major step forward in their efforts to build optical communication systems for future missions to the Moon and beyond. Scientists at the Kryoneri Observatory near Athens, Greece, shot a powerful …

On July 14, 2015, NASA’s New Horizons spacecraft flew past Pluto, revealing unprecedented close-up views of the complex icy world. The iconic mission is still returning data from the far reaches of the solar system, but a lack of funding now threatens to end the mission prematurely. As NASA celebrates the 10th anniversary of the historic Pluto flyby, the space …

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Researchers have observed the largest ever collision between two massive black holes witnessed by humans, a finding that’s sent astrophysicists back to their calculators to re-think models. Astroboffins spotted the aftereffects of the event on November 23, 2023, when they detected emissions from two huge black holes, each around 100 and 140 times the mass of the Sun, that collided …

Scientists have created a penny-sized laser that they say could improve the way that autonomous vehicles can navigate the streets. The laser is intended to enhance a scientific technique called optical metrology — in which light is used to measure and identify objects. They envision several applications for their invention, including lidar (light detection and ranging), which is used to …