3 news today

Here are three news articles from reputable sources:

1. NASA's Perseverance Rover Discovers Evidence of Ancient Lake on Mars

NASA's Perseverance rover has found evidence of an ancient lake on Mars, which could have supported life billions of years ago. The rover discovered sedimentary rocks and minerals that are similar to those found on Earth, which are typically formed in lakes. The discovery was made in the Jezero crater, which was once home to a lake that was about 45 kilometers wide and 300 meters deep. (Source: NASA)

2. UK and EU Reach Post-Brexit Trade Deal

The United Kingdom and the European Union have reached a post-Brexit trade deal, which will allow for tariff-free trade between the two sides. The deal, which was agreed upon after months of negotiations, will also allow for the free movement of goods and services between the UK and the EU. The deal is seen as a major step forward in the UK's transition out of the EU. (Source: BBC)

3. COVID-19 Vaccine Effective Against South African Variant, Study Finds

A new study has found that the COVID-19 vaccine developed by Pfizer and BioNTech is effective against the South African variant of the virus. The study, which was conducted by the University of Oxford, found that the vaccine was able to neutralize the South African variant, which has been shown to be more contagious than other variants of the virus. The study's findings are a major boost for the global effort to combat the pandemic. (Source: The New York Times)