This article explains how the green card test and substantial presence test determine whether a foreign individual is taxed as a resident or non-resident alien in the United States. It highlights key ...

All products featured here are independently selected by our editors and writers. If you buy something through links on our site, Mashable may earn an affiliate commission. In short, why does ...

From the March 1992 issue of Car and Driver. Last month in the Carolinas, we threw three of the fastest sports cars in the ...

For decades, the search for life beyond Earth has revolved around a key question: What molecules should scientists be looking for on other planets or moons? A new study, published in Nature Astronomy, ...

New detection method: A study shows life leaves an organizational molecular pattern detectable through statistical analysis, not just specific molecules. Space mission potential: The method can use ...

WHAT many in Trinidad and Tobago believed was a soucouyant (a fireball-like figure in Caribbean folklore) or alien spacecraft streaking across the night sky on Friday was in fact linked ...

The best part: you can step through their portals anytime, with a whole universe of excellent sci-fi ready to be discovered ...

This article was featured in the One Story to Read Today newsletter. Sign up for it here. When President Trump promised, in a social-media post in February, “to begin the process of identifying and ...

Elon Musk's SpaceX called off Thursday's launch at the 11th hour, but now a launch has successfully taken place.

WASHINGTON (AP) — The Pentagon has begun releasing new files on UFOs, saying members of the public can draw their own conclusions on "unidentified anomalous phenomena." Besides the Pentagon, the ...

WASHINGTON − The Pentagon released "never-before-seen" files on unidentified flying objects, and armchair investigators are furiously combing through them for evidence of "smoking gun" information ...