The faraway exoplanet could help provide answers as to why there are hardly any planets with twice the diameter of Earth.

Collisions are a growing risk as space gets more crowded, and greenhouse gas emissions could make things worse. Greenhouse ...

has provided a new impetus to efforts to better model how space weather events can increase the density of the upper atmosphere and thus the drag satellites in low orbits can experience.

The problem of debris in Earth orbit is getting worse. According to the European Space Agency's (ESA) annual Space ...

A new study from MIT found that climate change will make space junk pile up—causing ripple effects across everything from ...

The current state of Earth's climate has no recorded precedent. The consequences of the sheer volume of anthropogenic ...

NASA describes it as home to “very low density of molecules ... It’s also enough draft to slow space junk closer so it falls into denser parts of the atmosphere that vaporizes it.

An atmospheric layer of special interest is the thermosphere, where the International Space Station and most satellites orbit today. When the thermosphere contracts, the decreasing density reduces ...

The ice-giant planet Uranus, which travels around the sun tipped on its side, is a weird and mysterious world. Now, in an ...

This cooling reduces atmospheric density, lessening the drag that normally pulls space debris down towards Earth, where it burns up upon re-entry. Consequently, a less dense upper atmosphere ...