Puede usar las teclas derecha/izquierda para votar el artículo.Votación:1 estrella2 estrellas3 estrellas4 estrellas5 estrellas (3 votos, promedio: 5.00 sobre 5)
LoadingLoading...

Science

SCIENTISTS SAY THEY HAVE DISCOVERED LIQUID WATER UNDER SURFACE OF MARS

Rome/  A team of scientists linked to the European Space Agency on Wednesday said their instruments had uncovered data that confirmed the presence of liquid water under the surface of the planet Mars.

The important discovery from a group of Italian experts looking at data collected by an instrument attached to the agency’s Mars Express satellite pointed to the existence of water underneath frozen icecaps on the Red Planet in a similar fashion to the underground lakes in Antarctica or Greenland.

“Radar data collected by ESA’s Mars Express point to a pond of liquid water buried under layers of ice and dust in the south polar region of Mars,” the agency said in a statement.

The presence of liquid water at the base of the polar ice caps had long been suspected but until now evidence from the Mars Advanced Radar for Subsurface and Ionosphere Sounding instrument, the first radar sounder ever to orbit another planet, remained inconclusive, the agency said.

New techniques had now collected much high-resolution data that confirmed the discovery, a statement said.

“Ground-penetrating radar uses the method of sending radar pulses towards the surface and timing how long it takes for them to be reflected back to the spacecraft, and with what strength,” the statement said.

The properties of the material that lies between influenced the returned signal, which allowed the Italian experts to “map the subsurface topography.”

The agency said that there existed what they called an exciting prospect that “there could be more of these underground pockets of water elsewhere, yet to be discovered.” (July, 26, 2018, EFE/PracticaEspañol)

Noticia relacionada


Comprehension

Lee la noticia y responde a las preguntas. (Read the news and answer the questions.)

Congratulations - you have completed Lee la noticia y responde a las preguntas. (Read the news and answer the questions.). You scored %%SCORE%% out of %%TOTAL%%. Your performance has been rated as %%RATING%%
Your answers are highlighted below.
Question 1
El texto trata sobre...
A
el hallazgo de agua líquida y salada en Marte.
B
el procedimiento llevado a cabo que ha permitido descubrir que existe agua líquida y salada en Marte.
C
los instrumentos que han permitido descubrir que existe agua líquida y salada en Marte.
Question 2
Antes de este descubrimiento, ya había pruebas de la existencia de agua líquida en Marte.
A
Verdadero.
B
Falso.
C
No se cita.
Question 3
Este lago de agua líquida es comparado con...
A
Ninguna de las propuestas.
B
los existentes en el polo sur de Marte.
C
los existentes en la Antártida y Groenlandia.
Question 4
Los científicos interpretaron... para descubrir que hay agua líquida en Marte.
A
el espesor de la tierra.
B
la temperatura.
C
los ecos.
Question 5
Los científicos afirman posible que haya vida en Marte.
A
No se cita.
B
Falso.
C
Verdadero.
Question 6
Según el vídeo, el lago se encuentra...
A
bajo una capa de hielo.
B
ninguna de las propuestas.
C
en la superficie de Marte.
Question 7
Según el vídeo, el descubrimiento ha supuesto más de...
A
15 años de estudio.
B
3 años de estudio.
C
5 años de estudio.
Once you are finished, click the button below. Any items you have not completed will be marked incorrect. Get Results
There are 7 questions to complete.

Review grammar notes: infinitive, gerund and participle


Noticias al azar