The US and Iran had been friends for over a century before the British and American coup in 1953 eventually turned them into enemies.
Salt storms are an emerging threat, as Lake Urmia dries up and exposes huge salt marshes.
Australian academic Kylie Moore-Gilbert has been detained in Iran since 2018. Her transfer to a notoriously brutal prison this week has pushed a fellow researcher to speak out.
The Covid-19 epidemic has given rise to an avalanche of fake news, and accounts managed by Russian interests lead the way. How does this misinformation work, and what are its aims?
There's no scientific definition for a wave of disease – and no evidence that the original onslaught of coronavirus in the US has receded much at all.
In the murky world of cyber espionage and cyber warfare, effective deterrence has long been considered out of reach. A government report argues it's time to change that.
A poem by the Persian polymath Sa'adi helps us understand our shared vulnerability to coronavirus
From China and South Korea to Italy and the US, different countries are taking very different approaches to COVID-19 – with varying degrees of success.
War is expensive, and the Iranian leadership may now face increased pressure to withdraw from its involvement in the Syrian conflict.
Despite what you might see on the news, many of Iran's young people are far from rebellious. Instead, they have dealt with dwindling job prospects by conforming to a strict code of morality.
Iraq has asked the US to start withdrawing troops. If it doesn't, that's a breach of international law.
The conflict between Iran and the US has gone on for decades. A scholar of social movements in Iran asks why the US has consistently failed to support that country's activist reform movements.
Surely the time has come to shift gears and ramp up the public pressure on both Australian diplomats and Iranian politicians to secure the academic's release.
In recent years, voters have shifted their views on issues based upon the positions of politicians – even when that shift clashes with their ideology.
Despite apparent unity after the killing of an Iranian general by the U.S., deep divisions still mark the Middle Eastern country.
The assassination of the Iranian general could have lasting effects on energy markets. Which countries could benefit from it and which could be negatively affected?
The Iranian military operates cyber espionage and sabotage through a network of dozens of contractors, allowing the state to attack foes while denying involvement.
Some of the major events in US-Iran relations highlight the differences between the nations' views, but others presented real opportunities for reconciliation.
Iraqis have taken to the streets to protest against the foreign interference – by both Iran and the US – in their country.
Since President Donald Trump took office, Iranians have held a more unfavorable view of the US.