New dwarf planet beyond Neptune

The object labeled RR245 is traveling toward its closest approach to our sun. It'll reach this (very distant) closest point - 3 billion miles, or 5 billion km - around 2096.

ESA to capture large derelict satellite

The European Space Agency is moving forward with plans to capture and remove a large piece of space debris, in a mission called e.Deorbit, by 2023.

Canada is recruiting new astronauts

Astronauts wanted! The Canadian Space Agency (CSA) is actively recruiting for first time since 2008. Applications are open until mid-August.

Ultra-Deep Survey probes distant galaxies

The survey shows 250,000 galaxies in an area of sky 4 times the size of a full moon. It'll be used to help trace galaxy evolution over the last 13 billion years.

Swirling jet reveals black hole clues

A jet of swirling, cool, dense gas in the center of a galaxy - 70 million light-years from Earth - gives new clues to how supermassive black holes grow.

Success! Juno is orbiting Jupiter

After a 5-year voyage, Juno performed a successful braking maneuver on July 4. First spacecraft to enter Jupiter orbit since Galileo in the 1990s.

Earth-sized aurora on Jupiter

NASA released this image as the Juno spacecraft arrived at Jupiter.

Boom! Juno within Jupiter’s magnetosphere

In late June, as Juno crossed into Jupiter's magnetic field, an instrument aboard the craft recorded the bow shock. Hear it here.

What makes some galaxies green?

State-of-the-art computer simulations let scientists figure out why some galaxies are green. They said a green color for a galaxy might reveal a troubled past.

Surprise dew drops for Spiderweb Galaxy

Astronomers using the ALMA telescope to study the Spiderweb Galaxy unexpectedly found droplets of condensed water at the galaxy's outskirts.

Matching Donation Campaign

Exciting news! EarthSky received a $50,000 gift, with a request that it be used to collect matching funds. Please help us meet this match by donating to EarthSky today!

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