Iran’s space race
Iran test-launched a rocket called Safir-e Omid or “ambassador of hope” on Sunday, which it says is capable of putting satellites in orbit. The US says it doubts the success of the test, but also expressed concern about the rocket’s potential to deliver warheads.
Virus in the grass
The deadly maize streak virus that threatens Africa’s biggest food crop is the offspring of two comparatively harmless grass viruses. Darren Martin, an expert on infectious diseases at the University of Cape Town, South Africa, says scientists engineering resistance to MSV will now have to widen the range of…
