If you drop a light object and a heavy object from a tower, which one reaches the ground first? As you may recall from high school physics, this is a trick question. Neglecting air resistance, they both fall the same way and reach the ground at the
Massive planet too big for its own sun pushes astronomers to rethink exoplanet formation
Imagine you’re a farmer searching for eggs in the chicken coop – but instead of a chicken egg, you find an ostrich egg, much larger than anything a chicken could lay.
That’s a little how our team[1] of astronomers[2] felt when we[3] discovered a
A management expert explains how this model works − and how it fueled the tumult around CEO Sam Altman's short-lived ouster
The board of OpenAI, creator of the popular ChatGPT and DALL-E artificial intelligence tools, fired Sam Altman, its chief executive officer[1], in late November 2023.
Chaos ensued as investors and employees rebelled. By the time the mayhem had subsided five
AI chatbot's success says as much about humans as technology
ChatGPT was launched on Nov. 30, 2022, ushering in what many have called artificial intelligence’s breakout year[1]. Within days of its release, ChatGPT went viral. Screenshots of conversations snowballed across social media, and the use of ChatGPT
MicroRNA is the master regulator of the genome − researchers are learning how to treat disease by harnessing the way it controls genes
The Earth formed 4.5 billion years ago[1], and life less than a billion years after that. Although life as we know it is dependent on four major macromolecules[2] – DNA, RNA, proteins and lipids – only one is thought to have been present at the
What NASA would learn from a mission to a wild world
Uranus, the seventh planet from the Sun[1], orbits in the outer solar system, about two billion miles (3.2 billion kilometers) from Earth. It is an enormous world – quadruple the diameter of Earth, with 15 times the mass and 63 times the volume.
Earth's magnetic field protects life on Earth from radiation, but it can move, and the magnetic poles can even flip
The Earth’s magnetic field plays a big role in protecting people from hazardous radiation and geomagnetic activity that could affect satellite communication and the operation of power grids. And it moves.
Scientists have studied and tracked the motion of