Science

For nearly 60 million years, our home planet was likely frozen into a big snowball. Now, scientists have discovered evidence of Earth’s transition from a tropical underwater world, writhing with photosynthetic bacteria, to a frozen wasteland – all preserved within the layers of giant rocks in a chain of Scottish and Irish islands. The team,
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Right now, human population growth is doing something long thought impossible – it’s wavering. It’s now possible global population could peak much earlier than expected, topping 10 billion in the 2060s. Then, it would begin to fall. In wealthier countries, it’s already happening. Japan’s population is falling sharply, with a net loss of 100 people
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WASHINGTON — Boeing’s CST-100 Starliner will return from the International Space Station in September without the two astronauts on board who launched on it in June after NASA concluded thruster problems posed too much risk. NASA announced Aug. 24 that Butch Wilmore and Suni Williams, the NASA astronauts who flew to the ISS on Starliner’s
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On Sept. 26th, 2022, NASA’s Double Asteroids Redirect Test (DART) collided with Dimorphos, the small moonlet orbiting the larger asteroid Didymos. In so doing, the mission successfully demonstrated a proposed strategy for deflecting potentially hazardous asteroids (PHAs) – the kinetic impact method. By October 2026, the ESA’s Hera mission will rendezvous with the double-asteroid system
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WASHINGTON — NASA added three companies to a contract for launching smallsat missions, including one publicly traded company that has had recent financial struggles. NASA announced Aug. 22 that it selected Arrow Science and Technology, Impulse Space and Momentus Space for its Venture-Class Acquisition of Dedicated and Rideshare (VADR) contract. That selection allows them to
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WASHINGTON — Axiom Space is working with Nokia to adapt terrestrial wireless technologies to provide high-speed communications for the Artemis spacesuits Axiom is developing. The two companies announced a partnership Aug. 21 to develop 4G/LTE communications technologies, called the Lunar Surface Communications System (LSCS), for the suits Axiom is developing for NASA for use starting
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Artificial intelligence (AI) prophets and newsmongers are forecasting the end of the generative AI hype, with talk of an impending catastrophic “model collapse”. But how realistic are these predictions? And what is model collapse anyway? Discussed in 2023, but popularised more recently, “model collapse” refers to a hypothetical scenario where future AI systems get progressively
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