New research on the orbits of these mysterious asteroids near Venus stress the need for better space rock surveillance.

Perihelion was Jan 4, which the closest distance Earth is to the Sun. All planets, and even comets and asteroids, have elliptical orbits around our large sun.

A recent breakthrough in satellite technology promises to revolutionize how we observe the Earth by enabling global coverage in just 35 minutes. A study published in Space: Science ...

Geosynchronous orbits are vital for communications and Earth-monitoring satellites. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A ...

Different altitudes – low Earth orbit (LEO), medium Earth orbit (MEO), geostationary Earth orbit (GEO) – provide one variable, but elliptical (stretched out) orbits can support new use cases.

Satellites in LEO travel at speeds around 7.8 kilometres per second, which means they complete an orbit around Earth approximately every 90 minutes. As a result, the ISS orbits Earth about 16 ...

Using NASA's Transiting Exoplanet Survey Satellite (TESS), an international team of astronomers has discovered a new ...

Some satellites, like GPS nodes, are launched into higher "geostationary" orbits around 18,000 miles (30,000 kilometers). This allows them to remain fixed over a specific part of the globe.

Earth reaches aphelion every July, and this year it occurs on Thursday at 3:55 p.m. Eastern time. That Earth has an aphelion is a result of its orbit being elliptical, rather than circular.