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Calls to allow people to return to the Radical Road

Tonga's volcanic plume reached half-way to space

Pacific volcano: Science to explain event ferocity

Largest-ever millipede fossil found on beach

Perseverance Mars rover finds its 'baseline' rocks

Quest begins to drill Antarctica's oldest ice

Living in fear of rain in the shadow of tips

Volcano survivors shaken but determined to rebuild

Mars scientists now know where to look for life

Puddingstone rock is a rare find, expert says

Puddingstone rock on display in bypass village

Cavers descend into Yemen's 'Well of Hell' Video, 00:00:58Cavers descend into Yemen's 'Well of Hell'

Rover rock cores were 'highest priority samples'

North Sea's hidden ice age past is revealed in 3D

Nasa confirms Mars rover has its first rock sample

Open Country. People and Stone. Audio, 24 minutesOpen Country

Mars rover's first rock sample goes missing

Nasa probe determines Mars' internal structure

Mars rover prepares to drill first rock sample