Nasa Image of the Day
Space Station's Expandable Habitat

Space Station's Expandable Habitat

The Bigelow Expandable Activity Module (BEAM) is seen attached to the Tranquility module of the International Space Station. BEAM is an is an experimental expandable habitat. Expandable habitats, occasionally described as inflatable habitats, greatly decrease the amount of transport volume for future space missions.

Book Store
Galileo and 400 Years of Telescopic AstronomyGalileo and 400 Years of Telescopic Astronomy has teamed up with to bring you the finest selection of astronomy related books at the best prices.

Browse through our bookstore and check out our fine selection of books from star charts and astrophotography to mathematical astronomy. We are sure you will find the book that best suits your needs.

Sky View Cafe
Sky View Cafe

Sky View Café is a Java applet that lets you use your web browser to see many types of astronomical information, in both graphical and numerical form. You can see which stars and planets will be out tonight in the sky above your home town, see how the next solar or lunar eclipse will look from London, or find out when the Moon rose over Sydney on your birthday ten years ago. Sky View Café includes star charts, a 3-D orrery, displays of the moons of Jupiter and Saturn, an astronomical event calendar, an ephemeris generator, and many other features. Enter Sky View Café now!

Buy A Star Gift - Name a star for any occasion, view it live on Google Sky
Universal Star Registry Certificate Star Naming Service
Name a star for yourself or for that special person as the perfect gift that will sparkle for a lifetime! Ideal for any occassion, birthdays, christenings, anniversaries and memorials. Reserve a place in the heavens for your loved ones

The Sky Tonight Astronomy News
Rosetta’s descent - Read more >
Fri, 30 Sep 2016 14:50:00 +0200

Closer and closer: image highlights captured during Rosetta’s descent to the comet’s surface

Once upon a time... - Read more >
Fri, 30 Sep 2016 14:25:00 +0200

On the last day of her mission, Rosetta slowly descends onto the comet, but there is one last surprise in store

Rosetta’s final hour - Read more >
Fri, 30 Sep 2016 14:00:00 +0200

Watch how the final stages of Rosetta’s descent to the surface of the comet played out at ESA’s mission control

Mission complete: Rosetta’s journey ends in daring descent to comet - Read more >
Fri, 30 Sep 2016 13:30:00 +0200

ESA’s historic Rosetta mission has concluded as planned, with the controlled impact onto the comet it had been investigating for more than two years. 

The journey continues - Read more >
Wed, 28 Sep 2016 14:30:00 +0200

Once again, the lines between science fiction and science fact blur in this epilogue to the short film, Ambition

How to follow Rosetta’s grand finale - Read more >
Wed, 28 Sep 2016 14:30:00 +0200

Rosetta is set to complete its historic mission in a controlled descent to the surface of its comet on 30 September, with the end of mission confirmation predicted to be within 20 minutes of 11:20 GMT (13:20 CEST).

Once upon a time… - Read more >
Tue, 27 Sep 2016 14:50:00 +0200

After more than two years at the comet, Rosetta is preparing for her final descent on 30 September

NASA's Hubble Spots Possible Water Plumes Erupting on Jupiter's Moon Europa
Mon, 26 Sep 2016 14:00:00 -0400Hubble Image

New findings from NASA's Hubble Space Telescope show suspected water plumes erupting from Jupiter's icy moon Europa. These observations bolster earlier Hubble work suggesting that Europa is venting water vapor. A team of astronomers, led by William Sparks of the Space Telescope Science Institute in Baltimore, Maryland, observed these finger-like projections while viewing Europa's limb as the moon passed in front of Jupiter. The team was inspired to use this observing method by studies of atmospheres of planets orbiting other stars.

Sculpted by ancient water - Read more >
Mon, 26 Sep 2016 14:40:00 +0200

Stunning bird’s eye view of Mawrth Vallis, a remarkable valley that could harbour hints of past life on Mars

Summer fireworks on Rosetta’s comet - Read more >
Fri, 23 Sep 2016 10:00:00 +0200

Brief but powerful outbursts seen from Comet 67P/Churyumov–Gerasimenko during its most active period last year have been traced back to their origins on the surface.

Hubble Finds Planet Orbiting Pair of Stars
Thu, 22 Sep 2016 10:00:00 -0400Hubble Image

Two is company, but three might not always be a crowd, at least in space. When astronomers found an extrasolar planet orbiting a neighboring star, a detailed analysis of the data uncovered a third body. But astronomers couldn't definitively identify whether the object was another planet or another star in the system.

Barry M. Lasker Data Science Fellowship
Fri, 16 Sep 2016 13:00:00 -0400Hubble Image

The Space Telescope Science Institute (STScI) in Baltimore, Maryland, announces the initiation of the Barry M. Lasker Data Science Postdoctoral Fellowship. The Lasker Fellowship is a STScI-funded program designed to provide up to three years of support for outstanding postdoctoral researchers conducting innovative astronomical studies that involve the use or creation of one or more of the following: large astronomical databases, massive data processing, data visualization and discovery tools, or machine-learning algorithms. The first recipient of the fellowship is Dr. Gail Zasowski of the Johns Hopkins University (JHU) in Baltimore, Maryland. The fellowship is named in honor of STScI astronomer Barry M. Lasker (1939-1999).

Hubble Takes Close-up Look at Disintegrating Comet
Thu, 15 Sep 2016 13:00:00 -0400Hubble Image

Comet 332P/Ikeya-Murakami survived for 4.5 billion years in the frigid Kuiper Belt, a vast reservoir of icy bodies on the outskirts of our solar system. The objects are the leftovers from our solar system's construction. But within the last few million years, the unlucky comet was gravitationally kicked to the inner solar system by the outer planets. The comet, dubbed 332P, found a new home, settling into an orbit just beyond Mars. But the new home, closer to the sun, has doomed the comet. Sunlight is heating up Comet 332P's surface, causing jets of gas and dust to erupt. The jets act like rocket engines, spinning up the comet's rotation. The faster spin rate loosened chunks of material, which are drifting off the surface and into space.

A taster of Gaia’s sky - Read more >
Thu, 15 Sep 2016 10:35:00 +0200

Media briefing replay: Gaia scientists present stellar catalogues obtained during the first year of ESA’s star surveyor

Gaia’s billion-star map hints at treasures to come - Read more >
Wed, 14 Sep 2016 12:30:00 +0200

The first catalogue of more than a billion stars from ESA’s Gaia satellite was published today – the largest all-sky survey of celestial objects to date.

Gaia’s first sky map - Read more >
Wed, 14 Sep 2016 12:30:00 +0200

ESA’s Gaia mission has published its first catalogue of a billion stars

Watch Gaia first data release media briefing - Read more >
Mon, 12 Sep 2016 10:30:00 +0200

Replay of the media briefing on the first data release from ESA’s Gaia mission on 14 September.

Rosetta’s descent towards region of active pits - Read more >
Fri, 09 Sep 2016 15:00:00 +0200

Squeezing out unique scientific observations until the very end, Rosetta’s thrilling mission will culminate with a descent on 30 September towards a region of active pits on the comet’s ‘head’.

Dr. Nancy A. Levenson Appointed Deputy Director of the Space Telescope Science Institute
Thu, 08 Sep 2016 13:00:00 -0400Hubble Image

Dr. Nancy A. Levenson has been appointed Deputy Director of the Space Telescope Science Institute (STScI) in Baltimore, Maryland. The Institute is the science operations center for the Hubble Space Telescope and the James Webb Telescope (JWST) that is scheduled to launch in 2018.

Rosetta’s legacy - Read more >
Tue, 06 Sep 2016 17:00:00 +0200

Tell us how Rosetta has influenced you and there’s a chance to win ESA prizes

Late stars - Read more >
Wed, 31 Aug 2016 17:00:00 +0200

The first stars were born much later than previously thought, ESA's Planck reveals

Space science starts here - Read more >
Wed, 17 Aug 2016 11:20:00 +0200

Video showcase of ESA's fleet of space science missions and how they are helping us to understand our place in the Universe

Hubble Uncovers a Galaxy Pair Coming in from the Wilderness
Thu, 11 Aug 2016 13:00:00 -0400Hubble Image

The galaxies in the early universe were much smaller than our Milky Way and churned out stars at a rapid pace. They grew larger through mergers with other dwarf galaxies to eventually build the magnificent spiral and elliptical galaxies we see around us today. But astronomers using the Hubble Space Telescope have looked at two small galaxies that were left off the star party list. For many billions of years Pisces A and Pisces B lived in a vast intergalactic wilderness that was devoid of gas, which fuels star formation. They got left out in the cold.

NASA's Hubble Looks to the Final Frontier
Thu, 21 Jul 2016 10:00:00 -0400Hubble Image

Celebrating its 50th anniversary this year, the TV series "Star Trek" has captured the public's imagination with the signature phrase, "To boldly go where no one has gone before." The Hubble Space Telescope simply orbits Earth and doesn't "boldly go" deep into space. But it looks deeper into the universe than ever before possible to explore the fabric of time and space and find the farthest objects ever seen. This is epitomized in this Hubble image that is part of its Frontier Fields program to probe the far universe. This view of a massive cluster of galaxies unveils a very cluttered-looking universe filled with galaxies near and far. Some are distorted like a funhouse mirror through a warping-of-space phenomenon first predicted by Einstein a century ago.

NASA's Hubble Telescope Makes First Atmospheric Study of Earth-Sized Exoplanets
Wed, 20 Jul 2016 13:00:00 -0400Hubble Image

The possibility of life on other worlds has fueled humankind's imagination for centuries. Over the past 20 years, the explosion of discoveries of planets orbiting other stars has sparked the search for worlds like Earth that could sustain life. Most of those candidates were found with other telescopes, including NASA's Kepler space observatory. NASA's Hubble Space Telescope has also made some unique contributions to the planet hunt. Astronomers used Hubble, for example, to make the first measurements of the atmospheric composition of extrasolar planets.

A Surprising Planet with Three Suns
Thu, 07 Jul 2016 14:00:00 -0400Hubble Image

A team of astronomers led by the University of Arizona has directly imaged with the SPHERE instrument on ESO's Very Large Telescope the first planet ever found in a wide orbit inside a triple-star system. The orbit of such a planet had been expected to be unstable, probably resulting in the planet being quickly ejected from the system. But somehow this one survives. This observation of the HD 131399 system suggests that such systems may actually be more common than previously thought. The results will be published online in the journal Science on July 7, 2016. The artist's impression shows a view of the triple-star system HD 131399 from the giant planet orbiting the system. The planet is HD 131399Ab and appears at the lower left of the picture.

Hubble Captures the Beating Heart of the Crab Nebula
Thu, 07 Jul 2016 10:00:00 -0400Hubble Image

At the center of the Crab Nebula, located in the constellation Taurus, lies a celestial "beating heart" that is an example of extreme physics in space. The tiny object blasts out blistering pulses of radiation 30 times a second with unbelievable clock-like precision. Astronomers soon figured out that it was the crushed core of an exploded star, called a neutron star, which wildly spins like a blender on puree. The burned-out stellar core can do this without flying apart because it is 10 billion times stronger than steel. This incredible density means that the mass of 1.4 suns has been crushed into a solid ball of neutrons no bigger than the width of a large city. This Hubble image captures the region around the neutron star. It is unleashing copious amounts of energy that are pushing on the expanding cloud of debris from the supernova explosion like an animal rattling its cage. This includes wave-like tsunamis of charged particles embedded in deadly magnetic fields.

Join the adventure - Read more >
Wed, 15 Jan 2014 16:49:00 +0100

Follow news, updates and real-time reporting on ESA's comet mission via the Rosetta blog

This Month's Sky Map
This Month's Sky Map

Take a look at this month's Sky Map to help you explore the wonders of the night sky!

Ideal for all sky watchers including beginners to astronomy.

The Sky Map will help you identify planets, bright stars, constellations and nebulae!
Printable version available too!

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