One sentence in this nature.com article begins "Throughout the 2000s, NASA sent a sustained barrage of spacecraft to Mars…"

In the same quote, what is another word that means the same as "sustained" in this context?

What does Dr. Joy Crisp think her research could lead to?

How do scientists currently get access to telescopes?

Please enter the first three words of a sentence that shows your answers is correct.

Which two types of material indicate that water was in an area?

clays

olivine

minerals

pyroxene

volcanoes

carbonates

volcanic rock

What else would you like to learn about NASA's plans to explore Mars?

Are there any words that you are unsure about?

You can list unknown words here.

What is the name of the mineral that Dr. Joy Crisp discusses in this article?

(Be careful, spelling matters!)

If you could, is there anything you would ask Dr. Joy Crisp?

Are there any words that you are unsure about?

You can always list unknown words here.

What is this article mainly about?

Alexandra Witze wrote "… scientists who participate in the agency’s Mars missions might no longer design and build their own highly specialized payloads to explore the red planet." The word"payload" refers to the things the spaceship could carry.

What does "highly specialized" mean in this context?

How is space travel changing according to this article?

What are the names of the three functioning orbiters NASA sent to Mars?

Who is the head of NASA's Mars exploration program?

(Be careful, spelling matters!)

When does NASA want to start planning a trip to Mars?

Alexandra Wentz also stated that "The agency’s long–running string of spacecraft is winding to a close, and international and commercial interests are on the rise."

What does "international" mean?

In the same quote (below), what does "commercial" mean?

"The agency’s long–running string of spacecraft is winding to a close, and international and commercial interests are on the rise."

One sentence in this nature.com article begins "Throughout the 2000s, NASA sent a sustained barrage of spacecraft to Mars…"

Which phrase best describes what "[t]hroughout the 2000s" means?

One sentence in this nature.com article begins "Throughout the 2000s, NASA sent a sustained barrage of spacecraft to Mars…"

In the same quote, what is another word that means the same as "sustained" in this context?

How do scientists currently get access to telescopes?

What else would you like to learn about NASA's plans to explore Mars?