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Where does space begin? Here's why it's closer than you think

Space

Where does space begin? Here's why it's closer than you think

The jump from Earth to space is often thought to happen 100 kilometres up, but it's time to think again and bring the boundary closer to home, says Jonathan McDowell

Comment

UK announces plans for two spaceports that could see launches by 2021

Space

UK announces plans for two spaceports that could see launches by 2021

News

Don't miss: amateur surgery, aqua-activism and a twisted Turing test

Life

Don't miss: amateur surgery, aqua-activism and a twisted Turing test

Culture

Artist impression

Space

Trio of stars shows Einstein is still right about relativity

News

globe

Space

Australia is launching a space agency, but what will it do?

Analysis

Artist's impression of a NASA habitat

Space

Colonists could use genetically modified bacteria to settle Mars

News

Earth

Space

Crewed missions to the moon and Mars need dreamers and doers

Leader

space launch system

Space

Giant rocket simulator helps engineers tweak before first launch

Regulars

spacewalk

Space

Team moon vs team Mars: the battle over the future of NASA

Insight

Trump has directed the US military to establish a Space Force

Space

Trump has directed the US military to establish a Space Force

President Trump has announced the creation of a Space Force, the first new US military branch since 1947, but it’s not yet clear what this new corps will do

News

Life

Spiders can ‘fly’ because they make near-invisible paragliders

News

Technology

CERN-inspired artwork HALO will make the invisible, visible

Culture

Space

Why Richard Branson's promises about space tourism are empty

Comment

Space

The New Horizons probe is awake and ready for its next flyby

News