Solar Impulse 2 touches down in Arizona: Pioneering solar-powered plane completes the San Francisco to Phoenix leg of its round-the-world flight

• The experimental solar powered plane has successfully completed the 10th leg of its round-the-world journey
• Swiss pilot Andre Borschberg flew this leg of the journey, from San Francisco in California to Phoenix, Arizona
• Solar impulse was in the air for a total of 15 hours and 52 minutes, with the aircraft landing at 8.55 pm local time

By Ryan O'Hare for MailOnline
Published: 00:50 EST, 3 May 2016 | Updated: 06:38 EST, 3 May 2016

Blood moon paints the sky red: Stargazers around the world look to the heavens to witness lunar spectacle for first time in 33 years

• During a lunar eclipse, the moon turns a deep rusty red, due to sunlight being scattered by the Earth's atmosphere
• The rare celestial event coincided with the 'supermoon' being at its nearest point in its orbit around our planet
• Some religious groups are convinced it is a sign that the End of Days is approaching
• Last time a lunar eclipse shared a stage with supermoon was 1982 - and the next will be in 2033
• Do you have any photos of the supermoon? Please email: pictures@mailonline.co.uk

By Mark Duell for MailOnline and Ollie Gillman For Dailymail.com
Published: 01:12 GMT, 28 September 2015 | Updated: 09:42 GMT, 28 September 2015

How to make it rain in the DESERT: UAE fires salt rockets in attempt to seed clouds and trigger much-needed downpours

• Salt flares are fired into clouds over the desert nation to trigger a downpour
• Method is known as cloud seeding and works by increasing condensation
• Technique's effectiveness at inducing rain has been called into question
• China used it to 'burst' clouds to make sure it was dry for Beijing Olympics

By JACK MILLNER FOR MAILONLINE

PUBLISHED: 10:51 GMT, 27 July 2015 | UPDATED: 11:52 GMT, 27 July 2015

The stunning snaps of nature at its wildest: Veteran storm chaser hits jackpot by capturing FOURTEEN tornadoes in just one hour

• Brian Morganti's latest series features magnificent images of tornadoes tearing across Colorado's plains
• He said it was one of the most prolific days he has ever experienced in his 19 years as a tornado chaser 
• In one scene a tornado passes perilously close to a farm, with the dark skies clashing with the green grass

By CHRIS KITCHING FOR MAILONLINE

PUBLISHED: 12:10 GMT, 23 July 2015 | UPDATED: 20:49 GMT, 23 July 2015

New Crew Joins Expedition 44

Official Expedition 44 crew portrait. Soyuz 42 (Gennady Padalka, Mikhail Kornienko, Scott Kelly) and Soyuz 43 (Oleg Kononenko, Kimiya Yui and Kjell Lindgren).

Tàu vũ trụ Nga chở người cập vào Trạm Không gian

VOA

Tàu vũ trụ Soyuz TMA-17M được phóng lên Trạm vũ trụ quốc tế từ căn cứ không gian Baikonur, Kazakhstan sớm thứ Năm 23/7/2015

24.07.2015

Một phi thuyền Soyuz của Nga đã tới Trạm Không gian Quốc tế, sau hai tháng trì hoãn tiếp theo sau sự thất bại của một tàu vũ trụ chở hàng Nga không người lái.

Will the mystery of Namibia's fairy circles ever be solved? Stunning images reveal astonishing extent of baffling grass rings

• Bare patches of earth across scar huge areas of the grassy Namib desert 
• Scientists have launched a fresh attempt to unravel what causes them
• They believe it may be the action of termites or competition between plants
• Pictured from the air, the vast scale of the phenomenon becomes clear

By RICHARD GRAY FOR MAILONLINE
PUBLISHED: 11:47 GMT, 14 July 2015 | UPDATED: 15:11 GMT, 14 July 2015

Are Siberia's mysterious craters caused by climate change? Scientists find four new enormous holes in northern Russia

Four new craters have been spotted by scientists in the Yamal peninsula, in Siberia

May be caused by gas from underground and fear craters becoming more common due to rising temperatures

Bright flash of light seen close to one crater which led to theories that buried gas pockets in the soil may be igniting

Another new crater has been found less than six miles from a major gas plant and experts have called for an urgent investigation into the phenomenon 

By WILL STEWART IN MOSCOW

PUBLISHED: 15:30 GMT, 23 February 2015 | UPDATED: 15:57 GMT, 23 February 2015

How a Storm Gave Birth to Twin Tornadoes in Pilger, Nebraska

NBC NEWS/ Science 

By Alan Boyle

Solar-powered Impulse 2 makes maiden flight: Eco-friendly aeroplane set to fly around the world next year

Solar Impulse 2 HB-SIB took off from Payerne airbase in Switzerland

It soared above the clouds for over an hour before landing safely

Aircraft's 36ft (72metres) wings are covered in 17,000 solar cells

Maiden flight was made by German test pilot Markus Scherdel

Pilots Bertrand Piccard and André Borschberg will make the record-breaking attempt to circumnavigate the globe over five months in 2015

By Sarah Griffiths 
Published: 10:28 GMT, 2 June 2014 | Updated: 14:18 GMT, 2 June 2014

Antarctic glaciers melting 77% faster than 40 years ago...

Antarctic glaciers melting 77% faster than 40 years ago: Sea levels will rise by FOUR FOOT if they collapse completely

• Study looked at six of the fastest flowing glaciers in Antarctica
• They are collectively shedding ice 77% faster than they were in 1973
• Now shed the same amount of ice as the entire Greenland ice sheet
• Ice from these glaciers accounts for 10% of the annual sea-level rise

By Suzannah Hills

PUBLISHED: 13:18 GMT, 30 March 2014 | UPDATED: 07:51 GMT, 31 March 2014

Hugh glaciers in Antarctica are shedding ice at a much faster rate than expected, a new report claims.