When she was 5, her older brother gave her a copy of Oliver Butterworth's The Enormous Egg, a fantasy that plays off the then - controversial notion of a close kinship between dinosaurs and birds. (discovermagazine.com)
Beginning in 1998, their groups have independently produced compelling evidence for the once controversial notion that our galaxy has at its center a supermassive black hole which is about 4 million times as massive as the sun. (sciencemag.org)
This is clearly a controversial notion, but it appears to follow from what has previously been examined about the understanding of God's power in the Old Testament. (religion-online.org)