This Week in Science

Mars and beyond: Understand the world through 8 science images

U.S. Fish and Wildlife Service

The week of February 18–24 saw historic moments in space science, plus hope for endangered species and the climate here on Earth.

U.S. Fish and Wildlife Service

Here are 8 incredible images which exemplify the most important science stories of the week.

Douglas Levere/University at Buffalo

Douglas Levere/University at Buffalo

8. Vaccinations in Gaza

picture alliance/Getty Images

February 22

Coronavirus vaccinations began in the Gaza Strip after a rival of Palestine's president organized delivery of the Russian vaccine.

picture alliance/picture alliance/Getty Images

7. Map of the sky

LOFAR/LOL survey

February 19

Astronomers published a map of 25,000 supermassive black holes, covering 4 percent of the northern sky.

LOFAR/LOL survey

6. Birthplace of neutrinos

Bair Shaybonov

February 22

Researchers using a Cherenkov radiation detector in Siberia determined that nearly all high-energy neutrinos are produced in quasars, contrary to previous research.

Bair Shaybonov

5. Ancient man's best friend

Douglas Levere/University at Buffalo

February 23

A 10,150-year-old dog bone fragment was discovered in Alaska, supporting claims that dogs migrated with the first humans to the Americas.

Douglas Levere/University at Buffalo

4. Heavier than Higgs boson

UNIVERSITY OF GRANADA

February 23

Scientists proposed the existence of a particle heavier than the Higgs boson, which could reveal the origin of dark matter.

UNIVERSITY OF GRENADA

3. Back in agreement

MANDEL NGAN/AFP/Getty Images

February 19

The U.S. finished the 30-day process to re-enter the Paris Agreement and committed to taking action against climate change.

MANDEL NGAN/AFP/Getty Images

2. Cloning for conservation

U.S. Fish and Wildlife Service

February 18

Scientists revealed the black-footed ferret Elizabeth Ann, the first successful clone of a native endangered species in the U.S.

U.S. Fish and Wildlife Service

1. Touchdown on Mars

NASA

February 18

NASA's Perseverance rover touched down in the Jezero Crater on Mars, beginning its mission to find signs of ancient life on the planet.

NASA

Read more stories on science here.

NASA/JPL-Caltech

NASA/JPL-Caltech