Earthlike planets unlikely in systems with hot Jupiters

Solar systems with so-called hot Jupiters don't seem to harbor Earth-sized planets, a discovery that will narrow the search for Earth-like worlds.

NASA uses moon as mirror to watch Venus transit sun

Just like human eyes, the Hubble Space Telescope can't observe the sun directly - so NASA scientists plan to study Venus's solar transit in June by using the moon as a mirror.

Hubble sees the eye of a galactic storm

The image snapped by NASA’s Hubble Space Telescope may seem like a quiet patch of sky at first glance. 

These dwarf stars consume exoplanets

Astrophysicists at the University of Warwick have identified four white dwarfs surrounded by dust from shattered planetary bodies which once bore striking similarities to the composition of the Earth.

Black hole caught shredding star

Astronomers have had their best look yet at a supermassive black hole in the process of shredding a star.

ESA to probe Jupiter's icy moons with JUICE

The European Space Agency (ESA) is shifting its focus to study Jupiter's icy moons and plans on launching a mission from Kourou, French Guiana, in 2022. 

Messier 78 nebula is threaded with cosmic dust

A recently snapped image of the region surrounding the Messier 78 nebula, just to the north of Orion’s Belt, shows clouds of cosmic dust threaded through the nebula like a string of pearls.

Will humans ever reach another star?

Jon Spaihts may pen scripts about humans exploring the far reaches of the galaxy, but does the Prometheus screenwriter really believe we will ever reach another star?

Key enzyme could slow aging for weightless astronauts

Astronauts signing up for long-term future missions to Mars and beyond will inevitably face a wide range of health issues, including microgravity-induced lymphocyte programmed cell death.

Last chance to see Venus transit for over 100 years

In a little over a month's time, sky-watchers will have what's likely to be a once-in-a-lifetime experience, seeing Venus pass across the face of the sun.

Black hole emits massive X-ray burst

A population of old, volatile stellar black holes has been discovered, following an 'extraordinary outburst' from one located in a nearby galaxy.

Amazon founder's new spaceship completes wind tunnel tests

Blue Origin, the spaceflight company backed by Amazon founder Jeff Bezos, has released the next little snippet of information about how its plans are progressing.

Rogue stars found in intergalactic space

Astronomers at Vanderbilt University have managed to identify nearly 700 rogue stars that were likely ejected from the Milky Way galaxy.

This nebula is running out of nuclear fuel

Stars running out of nuclear fuel pass through the preplanetary or protoplanetary nebula stage - a short period in the cycle of stellar evolution that has nothing to do with planets.

ESA mission to get closer to sun than ever before

The European Space Agency is to launch a mission  to the sun that will get closer than ever before.

Strange lava spirals discovered on Mars

Lava flows coiled like snail shells have been found for the first time on Mars - and they're bigger than anything similar on Earth.

Ancient asteroid strikes more frequent than thought

The Earth experienced many more giant asteroid strikes in the past than previously believed, new NASA research shows.

A closer look at Titan's chemical factory

Saturn's giant moon Titan conceals a thick, smoggy atmosphere that is believed to be one of the most complex chemical environments in the solar system.

Galaxy found hiding inside another

Most galaxies are either roughly spherical or take the shape of a flat disk - but new observations from NASA's Spitzer Space Telescope show that the Sombrero galaxy is both.

More doubt cast on dark matter theories

The theory of dark matter has taken another knock, with the discovery of a vast structure of satellite galaxies and clusters of stars surrounding our galaxy, stretching out across a million light years.