Common swifts (Apus apus) remain airborne for 10 months of their non-breeding period, according to a new study by Lund University ornithologists.
A common...
A tiny bird fossil, named Eocypselus rowei, offers clues to the precursors of hummingbird and swift wings.
Specimen of Eocypselus rowei (Daniel T. Ksepka...
New X-Ray observations made with ESA’s XMM-Newton and NASA’s Swift space telescopes have provided evidence for the interaction of fierce stellar winds...
A team of astronomers using the Hubble telescope has studied a mid-sized black hole in the spectacular edge-on galaxy ESO 243-49 and found that it is surrounded...
