عربي English Türkçe اردو فارسى
Logo
Latest News
Varieties

China's Mars Probe Sends Back Video of Red Planet

The planet Mars is shown May 12, 2016 in this NASA Hubble Space Telescope view taken May 12, 2016 when it was 50 million miles from Earth. NASA/Handout via Reuters
The planet Mars is shown May 12, 2016 in this NASA Hubble Space Telescope view taken May 12, 2016 when it was 50 million miles from Earth. NASA/Handout via Reuters
TT
20
TT

China's Mars Probe Sends Back Video of Red Planet

The planet Mars is shown May 12, 2016 in this NASA Hubble Space Telescope view taken May 12, 2016 when it was 50 million miles from Earth. NASA/Handout via Reuters
The planet Mars is shown May 12, 2016 in this NASA Hubble Space Telescope view taken May 12, 2016 when it was 50 million miles from Earth. NASA/Handout via Reuters

China's space agency released video footage from its spacecraft circling Mars on Friday, two days after it successfully entered the planet's orbit in Beijing's latest ambitious space mission.

In the video, published by state broadcaster CCTV, the surface of the planet is seen coming into view out of a pitch black sky against the outside of the Tianwen-1, which entered the orbit of the Red Planet on Wednesday.

White craters are visible on the planet's surface, which fades from white to black through the video as the probe flies over the course of one Martian day, said official news agency Xinhua.

The five-ton Tianwen-1 -- which translates as "Questions to Heaven" -- includes a Mars orbiter, a lander and a solar-powered rover and launched from southern China last July.

It is the latest step in Beijing's space program, which aims to establish a crewed space station by 2022 and eventually put an astronaut on the moon, and has opened up a new, extraterrestrial arena for US-China competition.

Tianwen-1 launched around the same time as a rival US mission, and is expected to touch down on the surface of the planet in May.

Its success comes the same week as the United Arab Emirates' "Hope" probe also successfully entered Mars' orbit -- making history as the Arab world's first interplanetary mission.

Chinese scientists hope to land a 240-kilogram rover in May in Utopia, a massive impact basin on Mars. Its orbiter will last for a Martian year.

For the three-month study of the planet's soil and atmosphere, the mission will take photos, chart maps and look for signs of past life.

The probe has already sent back its first image of Mars -- a black-and-white photo that showed geological features including the Schiaparelli crater and the Valles Marineris, a vast stretch of canyons on the Martian surface.

Mars has proved to be a challenging target, with most missions since 1960, sent by Russia, Europe, Japan and India, ending in failure.

NASA's Perseverance, which is set to touch down on the Red Planet on February 18, will become the fifth rover to complete the voyage since 1997 -- and all so far have been American.

Most Viewed

 
Varieties

Sunshine Abounds as the Summer Solstice Arrives

Children cool off as they run through a public fountain in Colmar, eastern France, on August 21, 2023, as France experiences a late summer heatwave. (AFP)
Children cool off as they run through a public fountain in Colmar, eastern France, on August 21, 2023, as France experiences a late summer heatwave. (AFP)
TT
20
TT

Sunshine Abounds as the Summer Solstice Arrives

Children cool off as they run through a public fountain in Colmar, eastern France, on August 21, 2023, as France experiences a late summer heatwave. (AFP)
Children cool off as they run through a public fountain in Colmar, eastern France, on August 21, 2023, as France experiences a late summer heatwave. (AFP)

Peak sunshine has arrived in the Northern Hemisphere: the summer solstice.

Friday is the longest day of the year north of the equator, where the solstice marks the start of astronomical summer. It's the opposite in the Southern Hemisphere, where it is the shortest day of the year and winter will start.

The word “solstice” comes from the Latin words “sol” for sun and “stitium” which can mean “pause” or “stop.” The solstice is the end of the sun's annual march higher in the sky, when it makes its longest, highest arc. The bad news for sun lovers: It then starts retreating and days will get a little shorter every day until late December.

People have marked solstices for eons with celebrations and monuments, including Stonehenge, which was designed to align with the sun's paths at the solstices. Here’s what to know about the Earth’s orbit.

Solstices are when days and nights are at their most extreme

As the Earth travels around the sun, it does so at an angle relative to the sun. For most of the year, the Earth’s axis is tilted either toward or away from the sun. That means the sun’s warmth and light fall unequally on the northern and southern halves of the planet.

The solstices mark the times during the year when this tilt is at its most extreme, and days and nights are at their most unequal.

During the Northern Hemisphere’s summer solstice, the upper half of the earth is tilted toward the sun, creating the longest day and shortest night of the year. This solstice falls between June 20 and 22.

Meanwhile, at the winter solstice, the Northern Hemisphere is leaning away from the sun, leading to the shortest day and longest night of the year. The winter solstice falls between December 20 and 23.

The equinox is when there is an equal amount of day and night

During the equinox, the Earth’s axis and its orbit line up so that both hemispheres get an equal amount of sunlight.

The word equinox comes from two Latin words meaning equal and night. That’s because on the equinox, day and night last almost the same amount of time, though one may get a few extra minutes, depending on where you are on the planet.

The Northern Hemisphere’s spring, or vernal, equinox can land between March 19 and 21, depending on the year. Its fall, or autumnal, equinox can land between Sept. 21 and 24.

On the equator, the sun will be directly overhead at noon. Equinoxes are the only time when both the north and south poles are lit by sunshine at the same time.

What's the difference between meteorological and astronomical seasons? These are just two different ways to carve up the year.

While astronomical seasons depend on how the Earth moves around the sun, meteorological seasons are defined by the weather. They break down the year into three-month seasons based on annual temperature cycles. By that calendar, spring starts on March 1, summer on June 1, fall on Sept. 1 and winter on Dec. 1.