About 28 million years ago in the distant Whirlpool Galaxy, a blue supergiant star was having a downright miserable time. The young, enormous star was stuck in a gravitational dance with a greedy ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Toby Walters is a financial writer, investor, and lifelong learner. He has a passion for ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Thomas J Catalano is a CFP and Registered ...

Brittany Dube is a public health professional with expertise in health education and community health. She works for her local Department of Health as a Behavioral Health, Health Promotion, and ...

Laser material processing uses high-intensity light beams in material fabrication. This can include cutting, engraving, drilling or welding metals. It can also include cleaning materials with lasers.

As a small business owner, you know that accepting credit cards comes with a cost. Expanding your customer base to cardholders can create massive profits, but it can also swamp you in expensive swipe ...

Image processing is manipulation of an image that has been digitised and uploaded into a computer. Software programs modify the image to make it more useful, and can for example be used to enable ...