In 1980, a science documentary hosted by an astronomer became the most watched series in the history of American public television.
Harvard astrophysicist Avi Loeb, whose suggestion that the interstellar visitor ʻOumuamua could have been artificial made him one of astronomy's most…
On 17 March 1958, a three-stage rocket lifted a polished aluminium sphere from Cape Canaveral and placed it in a long, elliptical orbit around Earth.
China's Tianwen-2 spacecraft has reached Kamoʻoalewa and returned the first close-range image of the small asteroid that keeps pace with Earth.
When Curiosity rover landed in Gale Crater in August 2012, each wheel carried only twelve small holes, and those were deliberate: drilled at the factory as markers to help track how far the rover had rolled.
A single Heathrow-to-JFK flight delivers around 37 microsieverts of cosmic radiation — roughly 1% of the annual background dose an average person absorbs from rocks, air and their own body. For pilots and cabin crew flying the same routes hundreds of times a year, the arithmetic changes sharply.
In September 1994, off-duty NSW park ranger David Noble abseiled into a slot canyon 150 kilometres from Sydney and found a stand of trees that matched 90-million-year-old fossils. Fewer than 90 wild Wollemi pines remain, and the Australian government still keeps the grove's coordinates classified.
Voyager 1 is in interstellar space. It is also still inside the Solar System. Those statements appear contradictory only because there is no single physical line that can serve every meaning of the Solar System's edge.
On Wednesday, 12 August 2026, the Moon's darkest shadow will touch Earth in the high Arctic and sweep across Greenland, western Iceland and the North Atlantic before reaching the Iberian Peninsula near sunset.
At 7:17 a.m. Indian Standard Time on 24 September 2014, the Mars Orbiter Mission fired its main engine and allowed Mars to capture it.
The heart is a muscle, and like any muscle, it shrinks when you ask less of it. Within days of leaving Earth, an astronaut's heart begins to lose mass —…
By the time a spacecraft's radio signal reaches Earth from the outer Solar System, it is no longer a broadcast in any everyday sense.
On 12 April 1961, Soviet cosmonaut Yuri Gagarin became the first human to travel into space.
The viral estimate of 5 grams of plastic per week has been challenged, but the deeper finding is harder to argue with: nanoplastics under 200 nanometers can cross the blood-brain barrier and are now being found in human blood, placentas, and arterial plaque.
The first machine to carry a human-made clock measurably into the future was a scheduled passenger flight.
Cut the forelimb off an axolotl and it will grow another one, complete with bone, muscle, nerve and skin, in roughly six to eight weeks.
