There are currently 40 different Saros series in progress, each with its own assigned number. The total solar eclipse of March 20, 2015 belongs to Saros 120.
Dawn will be the first mission to successfully visit a dwarf planet when it enters orbit around Ceres on Friday, March 6.
The discovery suggests that, early in the history of the universe, galaxies contained elements such as carbon and oxygen, raw materials for making planets.
The rate of fireballs – or bright meteors – goes up by as much as 30% for several weeks around every March equinox. Why? No one is entirely sure.
There’s a total solar eclipse coming up at this month’s equinox. When is the next one after this, and how often do we get an equinox-eclipse?
Scientists offer a template for life that could thrive in the harsh, cold world of Titan, the giant moon of Saturn. It’s not life as we know it.
It’s a spacecraft shadow on a comet! Rosetta caught its own shadow encircled in a wreath of light, on the icy surface of Comet 67P/Churyumov-Gerasimenko.
In March 2015, the moon swings out to apogee – farthest point from Earth in its orbit – on March 5, and then reaches perigee – its nearest point – on March 19. We list the dates for this year’s 13 apogees and 13 perigees.
On Sunday, NASA astronauts completed their third spacewalk in eight days. Cool video and gorgeous pics from the trio of spacewalks.
A human observer with normal vision, standing on Mars, could easily see Earth and the moon as two distinct, bright evening or morning “stars.”
Nimoy’s character Mr. Spock on Star Trek inspired generations of astronauts, space scientists and engineers, as well as space fans around the globe.
Three of the five visible planets are in good view in March 2015. Venus and Jupiter shine first thing at nightfall. Saturn adorns the late night and predawn sky.
A black hole 12 billion times more massive than our sun – at the heart of the brightest quasar in the early universe – as the dark ages of the universe were just ending.
The comet was 51 million miles from Earth at the time – a short distance for the Dark Energy Camera, which is sensitive to light 8 billion light-years away.
A star’s luminosity is its true brightness. Nearly every star you see with the unaided eye is more luminous than our sun.
Then stay tuned. This comet – named C/2015 D1 (SOHO) – might become visible in your evening sky. Maybe.
Lucky observers in western North America saw bright lights streaking in the sky Monday night – the disintegration of a Chinese rocket body. Photo and videos here!
As we journey around the galaxy, our solar system might regularly interact with dark matter, which might dislodge Oort cloud comets and boost heat in Earth’s core.
Awesome images of Supernova 1987A, a colossal stellar explosion. Plus insights gained from study in the years since then.
Scholz’s star passed only 0.8 light-years from our sun, only 70,000 years ago. It came closer than any other known star, sweeping through the Oort comet cloud.
On February 20, 1962, John Glenn became the first American to orbit the Earth. He made three turns around the planet before returning safely.