Greater Knapweed - Centaurea scabies is big and showy, like a cross between a cornflower and a thistle, with whiskery petals in a whorl. It is a valuable nectar source for insects and a favourite flower of butterflies, including the Marbled White and Dark Green Fritillary. It also has therapeutic properties, and was once used in skin ointments to heal wounds and infections. Centaurea scabiosa is a truly outstanding wild flower which outshines many cultivated plants.
Sweet dreams. Bite-sized, mind blowing space facts about the Universe and the cosmos. Whether you're new to astronomy / astrophysics or not, check us out @ https://www.instagram.com/thespacekiosk/ Image: NASA/European Southern observatory/Space telescope science institute/Hubble Space Telescope
In pictures: National Geographic photo contest 2012
Crop of photo by Peter Delaney - "He is big 4 meters tall and over 4 ton in weight, he is the "Godfather". In one fluid movement he sprays his forehead and for one brief moment he is covered in the magic of dust and light. Etosha, Namibia."