Hubble is fully operational once again

In the history of space exploration, a handful of missions have set new records for ruggedness and longevity. On Mars, the undisputed champion is the Opportunity rover, which was slated to run for 90 days but remained in ...

Researchers: Climate pledges see world closing on Paris goal

Recent pledges by the United States and other nations could help cap global warming at 2 degrees Celsius (3.6 Fahrenheit) by the end of the century, but only if efforts to cut greenhouse gas emissions to "net zero" by 2050 ...

Low-income families strained by distance learning

When the COVID-19 pandemic closed schools across the country in March, districts turned to emergency online instruction, distributing tens of thousands of internet hot spots and learning devices like laptops and tablets.

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