Goldfish may be considered a common species of fish today, but once upon a time, they were exotic and rare. The Chinese began breeding them 1,000 years ago, eventually producing fish with classic ...

Neurons are cells in the body that are responsible for transmitting electrical signals through the nervous system. Different types of neurons affect the ability to move, which begins as an impulse, or ...

Different types of pimples can have various appearances, causes, and treatments. Common types of inflamed pimples include papules, pustules, nodules, cysts, blackheads, and whiteheads. You're most ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. When a new comet ...

The very goldfish you often see swimming around in fishbowls and small aquariums (Carassius auratus) can grow to enormous sizes when released into the wild — topping out at a maximum length of ...

The Comet 1 airliner roared into the air— and into history—on 20,000 pounds of thrust from its four De Havilland Ghost jet engines. For the first time ever, a jet-propelled aircraft was ...

A newly discovered comet, SWAN25F, is currently visible in the early morning sky, offering a celestial treat for skywatchers. Discovered by the ESA's SOHO satellite, it's distinguished by its ...

Types of insulin include rapid-, regular-, intermediate-, and long-acting, based on how long they take to start working. You may take a combination of these when managing type 2 diabetes. If you ...

NEW YORK — A newly discovered green comet tracked by telescopes has likely broken apart as it swung by the sun, dashing hopes of a naked-eye spectacle. Comet SWAN, hailing from the Oort Cloud ...

There are many different conditions that are recognized as mental illnesses. The more common types include: Other diseases or conditions, including various sleep-related problems and many forms of ...

The comet, also designated C/2025 F2, would have been visible just after dark slightly north of where the sun set. Its green color would have been difficult to see with the naked eye.