What would happen if time suddenly began running backwards? Of course, it can’t do that, but the question is one that recently crossed the minds of a team of astronomers in the USA.
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.
How does a former mineworker from Broken Hill end up working for the world’s biggest space agency, NASA?
Despite the lack of a strong, overarching national strategy, engineers, scientists, academics and entrepreneurs across the continent have been busy developing Australia into a spacefaring nation, building our modern space industry from the ground up.
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.
Earth, the Sun and a bike wheel: why your high-school textbook was wrong about the shape of Earth’s orbit.
Meteors – commonly known as shooting stars – can be seen on any night of the year. But some nights are better than others.
If you’re a fan of all things space, you’ve doubtless heard about the ‘devil comet’, which has been captivating keen-eyed observers in the Northern Hemisphere for the past few weeks.
Stars are born from huge clouds of mostly hydrogen gas floating in space.
If astronomers ever needed something to gloat about with scientific colleagues in other fields, their ability to look directly backwards in time is an obvious candidate.