In theory, water-based propulsion systems are a low-cost, safer alternative to conventional engines. Water is easier to ...
(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) (THE CONVERSATION) Every year, companies and space agencies launch hundreds of rockets ...
Interstellar comet 3I/ATLAS has just made its closest pass by Earth. came within about 168 million miles (270 million km) of our planet. Scientists say there is no danger at all as the object passed ...
(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Marcos Fernandez Tous, University of North Dakota; Preeti Nair, University of North ...