Tropical Storm Bill reached the Texas coast at 12pm local time.
The 1,500 year old graffiti gives an insight into the daily lives of the city's inhabitants
Scientists propose antenna that would maintain communication with hypersonic flights.
'The availability of methane and hydrogen is critical to the potential of the Martian crust as a habitat'
Watch live stream of 2015 Astrobiology Science Conference in Chicago online.
Scientists are currently looking for alien life on Mars and the moons of Jupiter and Saturn
French National Archaeological Research Institute (Inrap) finishes excavations of Lavau burial site.
Indonesia's Mount Sinabung, Karo Regency, erupted on 16 June, sending clouds of ash into the sky.
A fast-spreading Alaska wildfire has forced authorities to restrict traffic on a major highway.
Researchers have figured out how to count people in an area even without them carrying a mobile device
Mount Everest normally moves 4cm per year to the north east.
El Nino has become increasingly common, something the Chan Chan citadel is not equipped for.
Experts warn that storm will exacerbate the recent flooding.
Heightened geomagnetic activity could be affecting people with autoimmune diseases.
Nasa unveils 4K Ultra High-Definition video from the International Space Station.
Watch the live stream of Earth's close encounter with asteroid Icarus
New study analyses effectiveness of Nazi propaganda.
The atomic bulb glowed at half the Sun's temperature.
This is the second contact after seven months of hibernation.
Pontiff slams dependence on fossil fuels, calls for urgent action
World Wildlife Fund welcomes decision to use iconic Manhattan landmark.
The Beijing Family is the most successful genotype of Mycobacterium tuberculosis.
Extreme climate change may solve mystery of absence of big Triassic dinosaurs in tropics.
Sounds previously believed to have been magma seeping through the Earth's crust
SharkBytes app lets people search for attacks and incidents via GPS
Supersonic car to make debut ahead of 1,000 mph bid next year.
Philae which is resting on comet 67P has woken up from a seven-month slumber.
The World Energy Outlook Special Report details the steps for energy peaking and a climate pact success.
A traditional-dish in north-east Thailand, made from raw fish, has been found to be behind a high incidence of liver cancer in the area.
European Space Agency (Esa) announced that its comet lander Philae has contacted Earth.