SCIENCE

Image shows a star shedding outer layers 3,000 light years away and offers glimpse of how our sun will die.

The second major snow storm in less than a week pummels Chicago, Detroit and Boston.

Nasa requests $30m for preliminary studies into mission to Jupiter's moon Europa.

Two developments in graphene point to its potential as semiconductors and in LEDs.

Sediment studies from lake near abandoned city of Cantona point to long periods of drought 1,000 years ago.

Around 3,000 extra deaths are expected this week, based on a similar deaths hike to the mid-January cold spell's extra 3,721 deaths.

Mercury levels in yellowfin tuna rising by at least 3.8% per year.

Monash University has installed the FEI Titan Krios, which shows molecules in incredibly sharp 3D.

Researchers say global prices of greenhouse gas emissions can drop if clean technology comes into play.

Richard Corfield looks at current plans to make money from the moon's resources.

European rabbits found to be living in smaller burrows with fewer companions.

Over 120 burials have been found of the Przeworsk culture, an ancient tribe in the Iron Age and Roman period

Revellers preparing to mark the first full day of the Venice Carnival awoke to a flooded city.

Australian government says Great Barrier Reef should not be listed as "in danger".

The spinal circuit integrates brain signals with sensory inputs to enable intense balancing tasks.

Scientists find bacteria that can convert waste water into power and pure water, as well as produce hydrogen.

More than 8,500 people have already lost their lives to Ebola.

Astrophysicists are not sure what caused the gas to be ejected so early in galaxy formation.

Proof of the waves seen in polarised light has now been shown to rise from dust in space.

Hiker and companion were caught in blizzard in Torridon Highlands.

SMAP will measure the 2in deep soil which holds less than 1% of Earth's water

Climate cycles on Mars are an ongoing process thanks to its wobbly rotation axis.

Local residents in Frias, Argentina, have spotted a fireball hovering over the sky for hours.

Unlike most prevailing theories, the new proposal suggests dark matter is made of light particles that interact strongly with ordinary matter.

Composite rocks made of different types melded together like Black Beauty is what the Martian crust is made of.

Time does not pass, but instead what we think of as being our past exists in another part of spacetime.

Study establishes there are less than 250 of the species left in the Sahara.

Population explosion of bright pink sea slugs linked with warming ocean temperatures.

Images from ESA's spacecraft orbiting comet shows mysterious aspects of frozen ancient body.