The WikiLeaks founder is one step closer to being extradited on espionage charges.
The WikiLeaks founder will have the opportunity to appeal the decision.
The UK's Supreme Court says the bid did not "raise an arguable point of law."
The WikiLeaks founder is granted the right to petition the UK's top court for an opportunity to appeal a decision to have him extradited.
The judge overturned a previous decision blocking the extradition of the WikiLeaks founder.
Pressure is mounting from the UK for the US to rescind its demand for Assange's extradition.
Assange's mental health is too precarious for him to be exposed to the US prison system, a judge in the UK rules.
New Justice Department indictment charges the WikiLeaks founder with conspiring with LulzSec and Chelsea Manning to commit computer crimes.
The investigation was reopened in April following the WikiLeaks founder's removal from the Ecuadorian embassy.
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Assange tells a UK court that his life would be at risk if he's extradited to the US.
UK Home Secretary Sajid Javid has signed the request from the US Department of Justice.