We can see Mars from Earth. It typically looks like a small red dot with the naked eye, but it is definitely visible. Determining just how bright an object in the sky will be, however, is complicated.

Measurements taken at Earth's neighbors, Mars and Venus, show the battle between high-energy cosmic rays from beyond the solar system and the influence of the sun in the inner solar system.

One summer night in 1877, American astronomer Asaph Hall was looking through his telescope in Washington, D.C. Mars was at ...

Mars and Mercury came into conjunction with each other on January 27. Venus will appear much brighter than Mars to those who can see the planets, with Venus having a magnitude of -3.9 compared to ...

The outlook is promising for future long-term monitoring of planets across multiple wavelengths. Infrared imaging data from ...

In recent decades, space agencies have mostly been focused on visiting Mars -- but now their sights are shifting to Earth's other planetary neighbor: Venus ...

Venus spins backwards compared other ... 250 miles per hour — faster than an Earth hurricane. Venus, ... dust storms that occur on Mars however, once every six to eight Earth years.

A new study suggests Earth and Mars formed from ... in addition to measurements from 17 more of Mars’ meteorites. They then compared the composition of these ... Venus, Earth, and Mars, as ...

Compared to that, Earth is way less harsh. So why are Earth and Venus called twins? It's because, Gilmore says, Venus, Earth and, even to some extent, Mars all started relatively the same.

WHAT'S NEW — The video was captured on November 18, as the Solar Orbiter traveled closer to Venus. In the video, Venus shines as the brightest planet and can be seen on the left, while Earth ...

Three upcoming missions to Venus (two by NASA, one by ESA) are slated for the early 2030s and may reveal more about the meteorology of the planet, whose evolution is often compared to Earth’s.