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Science Wire | Apr 28, 2015

Russian cargo craft launched to ISS this morning

The unpiloted craft carries more than 6,000 pounds of food, fuel, and supplies for the International Space Station crew. Arrival now scheduled for Thursday morning.

Science Wire | Apr 27, 2015

Dancing tendrils on sun’s northeast limb

Where heliophysics meets art. Video acquired April 24 and 25, 2015.

The Fomalhaut system is one in which a planet is available for naming.  The motion of the planet Fomalhaut b is shown in this false-color composite image, taken with the Hubble Space Telescope in 2013.  Soon Fomalhaut b will have a proper name.   Read more about this image
Science Wire | Apr 27, 2015

Names needed in 20 distant solar systems

Deadline for submissions in the NameExoWorlds contest is June 15, 2015. Fifteen stars and 32 planets (47 objects total) in 20 solar systems available for naming.

A simulation of the dark matter structure in the universe.   This image covers an area of 20 megaparsecs, or about 1.3 billion light-years.  Image via CfA.
Science Wire | Apr 27, 2015

What is dark energy?

Instead of pulling galaxies in our universe together, gravity seems to be driving them apart. How can gravity be repulsive, when our everyday experience shows it’s attractive? To explain it, we need dark energy.

Photo by Justin Ng
Tonight | Apr 26, 2015

EarthSky’s meteor shower guide for 2015

Up next … the Eta Aquarid meteor shower, peaking on the morning of May 6.

Westerlund 2 — Hubble’s 25th anniversary image
Science Wire | Apr 23, 2015

Fly through Hubble’s 25th anniversary image

Fly through the Hubble Space Telescope’s 25th anniversary image of star cluster Westerlund 2 in 3-D!

Sunglint from Titan's liquid methane lakes.
Science Wire | Apr 23, 2015

NASA creates NExSS for life search

A new NASA collaboration will use a systems science approach – looking at the big picture, cutting across different scientific disciplines – to seek alien life.

Artist's concept of transiting exoplanet, via Astrobites
Science Wire | Apr 23, 2015

First visible light spectrum from exoplanet

Why are astronomers excited about the first directly obtained visible light spectrum – or rainbow array of visible colors – bounced from the surface of an exoplanet?

Science Wire | Apr 21, 2015

Ceres’ bright spots back in view

Dawn spacecraft has reacquired images of Spot 5, the mysterious bright double feature on the dwarf planet Ceres. The bright spots look … as strange as ever.

The Virtual Telescope Project acquired this image on Monday evening, April 20, 2015.
Science Wire | Apr 21, 2015

Asteroid just missed Earth on Tuesday

It came close. 2015 HD1 passed just 0.2 lunar distances away (45,600 miles or 73,400 km).

Photo credit: Robbo-Man
FAQs | Apr 20, 2015

What is earthshine?

That glow over the unlit part of a crescent moon – called earthshine – is light reflected from Earth.

Part of the 1996 Hubble Deep Field.  Read more about this image
Science Wire | Apr 19, 2015

Celebrate 25 years of Hubble Space Telescope

NASA has a whole slate of cool-looking activities in celebration of the 25th anniversary of the Hubble Space Telescope, starting on Monday, April 20!

Tonight | Apr 19, 2015

EarthSky’s top 10 tips for meteor-watchers

You might see a lot or you might not see many, but if you stay in the house, you won’t see any.

Science Wire | Apr 18, 2015

Dawn spacecraft captures Ceres’ sunlit pole

After more than a month orbiting on Ceres’ dark side, Dawn has captured enough images to make this animation of the dwarf planet’s north pole.

April 17, 2015 old moon via Irenilda M Neves
Blogs | Apr 18, 2015

Shortest lunar month of 2015 starts April 18

The shortest lunar month of 2015 starts with the April 18 new moon and ends May 18. Learn about the varying lengths of the lunar months, here.

Closest and farthest moons
Blogs | Apr 17, 2015

Moon at perigee – nearest point to Earth – April 17

The intriguing cycle of closest and farthest moons. Plus, dates for 2015’s 13 perigees (closest points) and 13 apogees (farthest points).

Science Wire | Apr 15, 2015

Experience 2 months of Rosetta’s comet

Spectacular images from Rosetta spacecraft of Comet 67P/Churyumov-Gerasimenko between January 31 and March 25. Many different angles. Increasing activity!

Science Wire | Apr 15, 2015

New Horizons’ first color pic of Pluto

New Horizons spacecraft is now only three months away from its historic sweep through the Pluto-Charon system in mid-July. First image in color!

Science Wire | Apr 14, 2015

Watch April 16 telecon on MESSENGER’s crash into Mercury

After more than 10 years in space, the spacecraft will collide with Mercury, ending its mission, around late April. NASA telecon scheduled for April 16 at 1 p.m. EDT (17:00 UTC).

Sucessful lift-off of SpaceX Falcon 9 on April 14, 2015.
Science Wire | Apr 14, 2015


SpaceX Dragon capsule now on its way to International Space Station after Tuesday’s successful liftoff via Falcon 9 rocket. Rendezvous set for Friday morning.

Image via New Scientist
Science Wire | Apr 14, 2015

10 surprises about our solar system

A collection of 10 unexpected and intriguing facts about our solar system – our sun and its family of planets – you probably did not know!