Explainer
Aliens
Christmas culture
Creed
5 min read

Star of wonder and beyond

From the Christmas star, humankind has been fascinated by astronomical possibilities.

Andrew works at the intersection of theology, science and philosophy. He is Canon and Regius Professor of Divinity at Christ Church, Oxford.

A star nebula of gas clouds and stars.
Tarantula Nebula, by the James Webb Space Telescope.
NASA, via Wikimedia Commons.

The James Webb Space Telescope was launched on Christmas Day 2021. After hair-raising maneuvers to unfurl its tennis-court-sized mirrors, it has been sending back breathtaking images of the cosmos since July of last year.   

Christmas was a good day for the launch, given its astronomical connections. ‘Glory to God in the highest heaven’, the angels sang to the shepherds, ‘and peace to his people on Earth.’ Meanwhile, the wise men were above all diligent observers of the heavens. ‘Where is the child who has been born king of the Jews?’, they ask, ‘For we observed his start at its rising, and have come to pay him homage.’  

Quite what that ‘star’ might mean there is open to debate. Comets have been popular with artists. Giotto painted one, for instance, in his Adoration of the Magi in the Scrovegni Chapel in Padua. It is almost certainly Halley’s Comet, which had appeared just a few years before, in October 1301. But why would anything in the heavens be interpreted as a birth in Judea? It would probably involve something in a constellation associated with the nation of the Hebrews. Pisces seems to be favoured, for some reason. A nova of some kind is one possibility: what would look like a temporary new star because, in fact, a previously invisible star was undergoing a spectacular death. Chinese records suggest a nova in 5 BC, which fits the likely date for for Christ’s birth of 7–2 BC. 

The problem with both comets and novae is that they were more likely seen as harbingers of doom than good news. The better candidate for suggesting something joyful is a planetary conjunction, and there would have been a rather spectacular conjunction of Jupiter, Saturn, and Mars at the right time. None of that, admittedly, explains what it means for the star then to have led the wise men. Coming up against that challenge, we might think that looking into the astronomical detail is the wrong way to approach the story. Nonetheless, Matthew had something in mind when he wrote about a start in his gospel, and it’s worthwhile to ask what that might have been. 

It might be fitting for God to deal with other species as intimately as God has dealt with us, so that they might see ‘God made visible’ in their own nature, as we see God made visible in ours. 

More recently, the Christmas story has intersected with astronomy in questions about how to think about Christian theology now that we are aware quite how big the universe is, especially if it may contain a great deal of other life. We don’t know whether that’s true, of course, but given we now know that planets common around stars, and there are billions of billions of stars in the universe, the probabilities seem to tilt towards other life, at least as I see it. 

Suggestions surfaces from time to time that the world’s religions have arrived late to the party, when it comes to thinking about life beyond Earth. The astronomer and broadcaster Carl Sagan made that claim, for instance, in his best-selling book Pale Blue Dot. In fact, the earliest discussions of life beyond Earth I know about from Christian writers come from the mid-fifteenth century (and they stretch even further back in Judaism and Islam, to give two other examples). Christian writers have written on the subject ever since. If few gave us more than a paragraph here or a page there, that’s usually because the prospect of other life did not worry them enough to warrant more. They noted the prospect cheerfully, and moved on.   

Until the twentieth century, the prospect of parallel Nativities on other planets was rarely in view. In a sense, it didn’t need to be. It’s a consistent Christian position to say that God joined his life to all creation in joining it to one species of rational animal on Earth, just as God joined his life to all humanity in being born in a stable, in a wayside town, in a backwater province of the Roman Empire.  

One erudite early exploration of multiple Incarnations comes in a poem from the 1920s by the Roman Catholic poet Alice Meynell, entitled ‘Christ in the Universe’. More recently, Meynell’s topic has become perhaps the central theme in thinking theologically about life beyond Earth. My own book (Astrobiology and Christian Doctrine, 2023) looks at the prospect of life beyond Earth from the perspective of all of central topics in Christian doctrine (creation, sin, redemption, revelation, the Trinity, and so on), but the largest section is on Christmas and possible parallels. I am sympathetic to the idea that God would also unite himself to another natures, alongside the human nature he took up in Christ: not because I think that would be necessary, but because it might be fitting. It might be fitting for God to deal with other species as intimately as God has dealt with us, so that they might see ‘God made visible’ in their own nature, as we see God made visible in ours. 

Hiding in plain sight in the Nativity stories is another key to Christian thinking about life beyond, namely the angels. It’s not that I think that angels are aliens, or that alien life is angelic. In fact, being a disciple of St Thomas Aquinas, I’m inclined to view angels as entirely immaterial, and so very much not examples of biological life. But angels are useful for thinking about other biological life beyond Earth nonetheless, because of what they mean for the Christian imagination. The angels show that there’s always been space in that imagination for rational creatures other than human beings. They show that Christianity has never imagined that we’re the sole object of God’s love, or even the most glorious of species.  

The Christmas story has its cosmic elements: the star, glory in the highest heavens, and the angels, reminding us that wonderful though humanity is, it has no monopoly on rational life. My hunch, as much as my hunch matters, is that if there is other life then they too may see God face-to-face in their own Incarnation. Even if we find evidence of life beyond Earth, however, it’s not going give us much detail. The balance of gases in the atmosphere of a planet around another star might indicate life, but not much else about it. The prospects for interplanetary comparative religion are far off indeed. Alice Meynell had the right idea, when she recognised that one of the joys of the life of the world to come will be learning the stories of God’s dealings elsewhere: 

  

But in the eternities, 

Doubtless we shall compare together, hear 

A million alien Gospels, in what guise 

He trod the Pleiades, the Lyre, the Bear. 

  

O, be prepared, my soul! 

To read the inconceivable, to scan 

The myriad forms of God those stars unroll 

When, in our turn, we show to them a Man. 

 Alice Meynell 

Explainer
Belief
Climate
Comment
Sustainability
7 min read

Living sustainably doesn’t have to be a burden, here’s the case for action

How not to get hot and bothered about climate change.

Barnabas Aspray is Assistant Professor of Systematic Theology at St Mary’s Seminary and University.

A protester holds up a green sign reading: 'It's hard to be green. Kermit'.
Markus Spiske on Unsplash.

The fundamental tenets of Christianity show why Christians are called to love not just one another but all created things. 

1. God is love. 

2. God created everything. 

Therefore, God loves everything he created.  

3. God appointed humanity as the guardians of creation. 

Therefore, a fundamental part of our identity and calling as human beings is to protect and sustain all that God created. 

This lies at the basis of everything Christians believe and do. But a case can be made that is more basic still because it appeals, not to anything distinctively Christian, but to natural human wisdom. The climate crisis is not a Christian crisis. It’s a crisis for everyone who cares about their future and that of our planet. The climate crisis may be something unprecedented in the history of humanity, but the principles that are needed to resolve it are not new at all. Sustainability is not a new or particularly abstruse idea. It is something everyone understands as basic common sense. If I cut down trees faster than they can grow, I won’t be able to do that forever. One day I will cut down the last tree and then there won’t be any more trees, ever again. If I catch fish faster than they can reproduce, then one day I will catch the last fish and then won’t be able to catch any more ever again.  

But it’s not only about foresters and fishermen. Since the dawn of humanity, we have been living sustainably – wisely preserving resources and using only what we can replace, so that we and our descendants can continue to live. This applies to everyone regardless of their profession. All of us, if we spend more money than we earn, are living in a way that cannot last for long. If we use resources at a faster rate than we can replenish them, we will run into trouble at some point in the future. Every person possessed of reason and common sense knows this intuitively without having to be taught it. Only someone seriously deluded, foolish, or with some kind of mental health problem fails to understand the need for sustainability in order to have any kind of future at all, let alone a pleasant future. 

The call to live sustainably can lead us to feel burdened by a permanent sense of guilt, a feeling that we ought to be doing more than we are... 

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We are burning fossil fuels at hundreds of times the rate they can be produced. We are producing plastics that cannot be recycled, meaning we have to dump them in landfills that are growing all the time. We are pouring carbon dioxide into the air faster than anyone can take it out. All of these things mean that there is a time limit on the kind of lifestyles we are all leading now. If we carry on in this way, then one day we will cross a line from which there is no returning. As Mark Scarlata has pointed out, the solution cannot be technological. Even if we find a way to balance carbon outputs with inputs, we are only kicking the can further down the road. Our inability to live within our means will simply resurface somewhere else later on. The problem is spiritual, not technical.  

Everyone understands this at some level even if it’s the kind of truth from which we prefer to avert our eyes. The harder problem is to understand why this basic common sense isn’t proving effective. Why are we living collectively in a way that only a foolish or insane person would live, when most of us taken by ourselves are neither foolish or insane? 

The problem, at least in part, is that we are all entangled in systems that make it very hard for us to live sustainably. If I am an ordinary Brit living in an ordinary town or city, and I need to buy toothbrushes or nappies or cucumbers or strawberries, I go to the local supermarket: and the only options available are made of plastic or wrapped in plastic that will not decompose for 500 years, and often brought here from the other side of the world using huge amounts of carbon emissions. Most of us are busy people with limited financial resources. We don’t have the time to find sustainable alternatives and often they are too expensive even if we can find them. The societal structures that we live in limit the choices we have. The call to live sustainably can lead us to feel burdened by a permanent sense of guilt, a feeling that we ought to be doing more than we are, but also an inability to see how we could be doing more given all the pressures, needs and constraints on our time and money. 

Christians do not naively believe that God will sweep in and fix everything if we just wait. That would be to deny our responsibility, and it is not what hope means. 

We are all culprits in part, since we all contribute to non-sustainable living. But we are also partly victims of forces beyond our control, large cultural forces that shape and determine our actions more than we can imagine. We have very little power over those structural forces and currently things do not look good. Common sense principles aren’t working. The climate crisis is only getting worse. So, what do we do?  

It is at this point that Christianity has something special to offer to the problem. 

First, Christians are never called to be defeatist or to throw in the towel. This is because we are called to an enormous hope, a hope that surpasses understanding, a hope that the world cannot understand because it stands over against all the odds and all the possibilities. This hope is rooted in the conviction that our God is God Almighty, that he has not abandoned his creation, and that he has power to save. He is a saviour. He is the God of our salvation. This is the God we believe in. The climate crisis may look bleak right now, but Christians need never despair or become indifferent. If we do our small part, we can trust that God is in control of what is out of our control.  

Secondly, Christians believe that every human being is a free agent with the capacity to choose how he or she will act. Our freedom may be limited by the societal structures that shape and constrain our choices, but it is not destroyed. We can still make choices within those limits to buy and live more sustainably – anything from choosing a holiday destination within driving distance, to giving up beef (by far the worst food for carbon emissions). There is something all of us can do.  

Thirdly, Christians believe in a God who transforms hearts and lives, winning them to the power of the gospel and to a new way of living that is free of the shackles that this world – the structures of society – puts on us. This transformation is slow – slower than we would like it to be sometimes. We feel the shackles still gripping us at times. We are not expected to change everything all at once, to become holy overnight. Nevertheless, God gives us the power to change our lives, and to become part of the solution rather than part of the problem. The way towards sustainable living is not to try to change everything at once, but to ask: what one thing can I change in my daily lifestyle that would make it more sustainable? And then once we’ve mastered that and integrated it so we no longer even think about it and it’s just a default, then we can ask: what’s the next thing I can do? All of a sudden what looks like an unimaginable height of transformation, when it is broken down, becomes a series of manageable steps.    

Even if we do everything in our power, we cannot by ourselves avert a possible catastrophe. We are small players in a big game. Christians do not naively believe that God will sweep in and fix everything if we just wait. That would be to deny our responsibility, and it is not what hope means. Hope means the opposite: that we continue to fight to avert climate disaster even when it seems hopeless. Christians are called to be part of the solution rather than part of the problem. We are called to live in such a way that, if catastrophe comes, it won’t be because of us – to live in hope that our actions are meaningful and worthwhile and that we are in the hands of a God who is far more powerful than the most powerful forces in this world.