Ever since Isaac Newton famously talked about gravity, its dominance as a force in our solar system has been well known. It's ...

A pair of theoretical physicists are reporting that the same observations inspiring the hunt for a ninth planet might instead be evidence within the solar system of a modified law of gravity ...

Human bodies are exquisitely tuned to one world, and it is not a forgiving one. Strip away our technology and even Earth ...

Approximately 4.5 billion years ago, a cold cloud of gas and dust buried deep in one of the Milky Way galaxy’s spiral arms started to collapse. From there, gravity worked its magic. The cloud began to ...

As you're reading this, NASA's records read some 250 spacecraft sent into space, carrying with them either humans or our hopes for some revolutionary discovery. None of them have actually left our ...

Physicists have created a mini sun with its own simulated gravity to investigate the causes of extreme space weather. The tiny sun — consisting of a superheated plasma inside a 1-inch-wide ...

This article was originally published at The Conversation. The publication contributed the article to Space.com's Expert Voices: Op-Ed & Insights. The size of the solar system is defined by the volume ...

Gravity and motion make time pass faster on Mars than Earth, reshaping navigation, communication, and future crewed missions.

A mind-bending hypothesis is gaining traction among scientists: The universe may be teeming with microscopic black holes the size of an atom, but with the mass of a city-sized asteroid. Created just a ...

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