Why is Pluto no longer a planet? Discover the real reason behind Pluto’s reclassification as a dwarf planet and the science that led to this change.

Pluto isn't alone—it's part of the Kuiper Belt with possibly hundreds of other planet-sized objects. Because Pluto hasn't achieved gravitational dominance in its region, the International Astronomical ...

NASA’s New Horizons mission changed our understanding of the outer solar system. After its famous Pluto flyby, it traveled ...

Computer simulations in 2005 suggest that Charon could have formed as the result of a hypothetical violent collision, when a large Kuiper Belt object struck Pluto at a high speed, destroying itself ...

Astronomers measure a star’s brightness using the apparent magnitude system, where lower values indicate brighter stars. Sirius, Canopus, Alpha Centau ...

I review privacy tools like hardware security keys, password managers, private messaging apps and ad-blocking software. I also report on online scams and offer advice to families and individuals ...

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In May, Buckinghamshire Council rejected their proposals to build a new multi-million pound development and argued the project was inappropriate for green belt land. The Planning Inspectorate will ...

Behind the planets in the solar system is the Kuiper Belt. An inventory of similar structures around other stars shows how unusual it is. A research team has used several telescopes to take images ...

As the gatekeepers to the Kuiper Belt, Charon and Pluto are a unique double dwarf planet system. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

Within the next two years, the "ding" of a seat belt reminder will be required for all seats in a vehicle, no longer just the driver. The National Highway Traffic Safety Administration finalized a ...