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Geminid meteors radiate from near star Castor in Gemini.
Blogs | Tonight | Dec 10, 2014

Radiant point for December’s Geminid meteor shower

The December Geminid meteor shower radiates from the constellation Gemini – in the east in mid-evening or overhead by about 2 a.m.

Artist's concept of an asteroid breaking up, via NASA/JPL
Science Wire | Dec 10, 2014

Asteroid 2014 UR116 is no threat to Earth

Calculations by NASA and Harvard say the closest the asteroid will get to Earth is about 2.7 million miles – over 10 times the moon’s distance – in April 2047.

Blogs | Videos | Dec 09, 2014

Video: Chasing Starlight

Beautiful new time-lapse video from Jack Fusco, under Canada’s dark skies.

ISS, as captured by Dave Walker
Blogs | Dec 09, 2014

How to spot the International Space Station

Every so often, the International Space Station (ISS) becomes visible in your night sky. Here’s how you can spot it.

Image Credit: NASA
Science Wire | Dec 08, 2014

New Horizon spacecraft wakes up for encounter with Pluto system

It’s awake! On Saturday, the New Horizons spacecraft came out of hibernation, at the doorstep of Pluto.

Possible iridium flare via Simon Waldram
FAQs | Dec 08, 2014

I saw a flash in the night sky. What is it?

We can’t ever say for sure what you saw in the night sky. But it might have been a flare from an iridium satellite.

Science Wire | Dec 06, 2014

As Dawn approaches, new image of dwarf planet Ceres

1 Ceres is the largest and most massive object in the main asteroid belt, between the orbits of Mars and Jupiter. Dawn will reach it in March, 2015.

Credit: NASA/JPL
Blogs | Dec 06, 2014

Dawn Journal: Update on trek from Vesta to Ceres

Dawn spacecraft’s chief engineer and mission director at JPL shares insights. Dawn due to reach Ceres in March, 2015. First spacecraft ever to orbit two planetary bodies!

Screen Shot 2014-12-04 at 2.22.29 PM
Science Wire | Dec 05, 2014

Video: We are dead stars

Every atom in our bodies was processed in the body of an ancient star.

Science Wire | Dec 05, 2014

Why scientists want to find a pulsar orbiting a black hole

Discovering a pulsar orbiting a black hole is considered ‘an authentic holy grail’ for testing Einstein’s theory of gravity.