Einstein’s claim that the speed of light is constant has survived more than a century of scrutiny—but scientists are still daring to test it. Some theories of quantum gravity suggest light might ...

Tesla (TSLA) stock rallied for nearly two years despite slowing sales growth and declining profits. Analysts expect Tesla revenue growth of just over 13% in 2026 after a 3% decline in 2025. Tesla’s ...

Observations during a solar eclipse confirmed gravitational lensing, validating Einstein’s prediction that mass bends spacetime. Hawley changes stance on war powers resolution after Trump backlash ...

Tesla is removing the option to pay a one-time fee for its Full Self-Driving (Supervised) driver assistance software, CEO Elon Musk announced Wednesday. Going forward, the only way to access the ...

Here’s what you’ll learn when you read this story: Einstein’s Theory of General Relativity, an immensely important update to Newton's Law of Universal Gravitation, is currently our best approximation ...

Elon Musk said that it would take several years before Nvidia can compete with Tesla's FSD (Supervised) technology. Nvidia announced Alpamayo, a family of open AI models for AV development, during the ...

Quantum theory and Einstein's theory of general relativity are two of the greatest successes in modern physics. Each works extremely well in its own domain: Quantum theory explains how atoms and ...

The expiration of a federal clean-vehicle credit at the end of Q3 likely led to a pull-forward in demand during the period. While Q4 numbers from Tesla may be weak, investors should zoom out and look ...

Which among these electric grocery-getters crosses the line first? After the quarter-mile, the results might surprise you. A YouTube drag race puts the Lucid Gravity, Tesla Model X Long Range, and ...