Tag: astronomy

Science & Environment

What is an ‘ocean world’?

One of the big surprises that’s come in recent years from our exploration of the solar system is the existence of icy ocean worlds in its outer reaches. Most are moons of the giant planets, although some dwarf planets such as Pluto may also have a similar structure.

Science & Environment

Stargazing in broad daylight

Astronomers at Macquarie University have pioneered a new technique for observing celestial objects during the day, potentially allowing around-the-clock visual monitoring of satellites and greatly improving safety on Earth and in space.