Happy Father’s Day! This week’s top five articles are below.

Last Wednesday, we were excited to see Venkat Viswanathan named as one of 35 innovators under 35 by MIT’s Technology Review. Viswanathan is a professor of mechanical engineering at Carnegie Mellon University. He first wrote for us in 2018, asking “Why aren’t there electric airplanes yet?”

Emily Costello

Deputy Editor

Coughing, sneezing, talking and even just breathing can produce airborne particles that can spread SARS-CoV-2. Stanislaw Pytel/Digital Vision via Getty Images

People are getting sick from coronavirus spreading through the air – and that’s a big challenge for reopening

Douglas Reed, University of Pittsburgh

SARS-CoV-2 can be spread through the air. But just how much of a factor that is has been hard to determine. Recent evidence suggests it is common, posing problems as public places begin to reopen.

For those who have suffered from COVID-19, do their antibodies guarantee immunity from subsequent disease? Sebastian Kaulitzki/Science Photo Library via Getty Images

Am I immune to COVID-19 if I have antibodies?

William Petri, University of Virginia

If you have had COVID-19 already, are you protected from another bout of the illness? And is the presence of antibodies in your blood a guarantee of immunity?